I am told it cannot connect to my various email accounts on Gmail.

What is the exact error message?

christ1 said

I am told it cannot connect to my various email accounts on Gmail.

What is the exact error message?

Hi, thanks for picking upon my question. It seems to be working ok now. I cannot recall the 'exact' error message. My recollection is; 'could not connect to server xxxx@gmail.com'. That probably doesn't help you much. If it occurs again, I'll repost with more info. Thanks

christ1 said

I am told it cannot connect to my various email accounts on Gmail.

What is the exact error message?

Hi I am sad to say my problem has reappeared today. I've attached a copy of the Error Console + Activity manager reports and hopefully those will make sense to someone that can advise me how to resolve this problem as I am not keen to have to delete TB profiles every 2-3 days to use TB effectively. I'd rather find another email client. So, any suggestions, advice or help would be appreciated. Thanks F4F

1. Activity Manager reported 4 x 'Failed to connect to server xyz@gmail.com' 2. All gmail accounts can be accessed easily through Firefox The attached images are sorted as follows: 3. Error Console: Errors = Images 1 - 3 in sequence 4. Error Console 'Messages' = Image 4 5. Error Console 'Warnings' = Image 5 – 6 6. After restarting laptop, the same 'cannot connect' to gmail server occurred. Error Console 'All' = Image 7 - 9

Can you post your Troubleshooting Information? At the top right of the Thunderbird window, click the menu button , then select Help, and then Troubleshooting Information. Press the Copy text to clipboard button and paste the information into your reply.

christ1 said

Can you post your Troubleshooting Information? At the top right of the Thunderbird window, click the menu button , then select Help, and then Troubleshooting Information. Press the Copy text to clipboard button and paste the information into your reply.

Hi, thanks for your follow-up. I hope this is what you are after and it helps.

 Application Basics

   Name: Thunderbird
   Version: 38.3.0
   User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0
   Profile Directory: Open Directory

             (Local drive)
   Application Build ID: 20150930121410
   Enabled Plugins: about:plugins
   Build Configuration: about:buildconfig
   Memory Use: about:memory

 Mail and News Accounts
   account1:
     INCOMING: account1, , (imap) imap.gmail.com:993, SSL, OAuth2
     OUTGOING: smtp.gmail.com:465, SSL, OAuth2, true

   account2:
     INCOMING: account2, , (none) Local Folders, plain, passwordCleartext

 Extensions
   Lightning, 4.0.3, true, {e2fda1a4-762b-4020-b5ad-a41df1933103}
   Messaging Menu and Unity Launcher integration, 1.3.1, true, messagingmenu@mozilla.com
   Provider for Google Calendar, 1.9, true, {a62ef8ec-5fdc-40c2-873c-223b8a6925cc}

 Important Modified Preferences

   Name: Value

     browser.cache.disk.capacity: 358400
     browser.cache.disk.smart_size_cached_value: 358400
     browser.cache.disk.smart_size.first_run: false
     browser.cache.disk.smart_size.use_old_max: false
     extensions.lastAppVersion: 38.3.0
     mail.openMessageBehavior.version: 1
     mailnews.database.global.datastore.id: 0bb3b3dd-8f6f-434f-a33b-8c8440fca55
     network.cookie.prefsMigrated: true
     network.predictor.cleaned-up: true
     places.database.lastMaintenance: 1447761767
     places.history.expiration.transient_current_max_pages: 104858
     plugin.importedState: true

 Graphics

     Adapter Description: Intel Open Source Technology Center -- Mesa DRI Intel(R) Haswell Mobile
     Vendor ID: Intel Open Source Technology Center
     Device ID: Mesa DRI Intel(R) Haswell Mobile
     Driver Version: 3.0 Mesa 10.5.9
     WebGL Renderer: false
     GPU Accelerated Windows: 0

     AzureCanvasBackend: cairo
     AzureSkiaAccelerated: 0
     AzureFallbackCanvasBackend: none
     AzureContentBackend: cairo

 JavaScript

 Incremental GC: 1

 Accessibility

   Activated: 0
   Prevent Accessibility: 0

 Library Versions

     Expected minimum version
     Version in use

     NSPR
     4.10.8
     4.10.8

     NSS
     3.19.2 Basic ECC
     3.19.2 Basic ECC

     NSS Util
     3.19.2
     3.19.2

     NSS SSL
     3.19.2 Basic ECC
     3.19.2 Basic ECC

     NSS S/MIME
     3.19.2 Basic ECC
     3.19.2 Basic ECC

Thanks F4F

Your server settings look good. Is there any kind of firewall you're behind or a proxy which might prevent Thunderbird from connecting to the server. Does your Internet access work otherwise?

What happens when you run the command below from a terminal?

openssl s_client -connect smtp.gmail.com:465 </dev/null
</pre>

Hi, thanks for looking at the for me. No, I am not behind any firewall or proxy that I am aware of. I cannot think of anything preventing TB from connecting to the server. Internet access is fine with Firefox, Ubuntu Software Centre and Synaptic Package Manager. What's confusing me further is that after I renamed the default TB profile earlier today and then created a new profile, it all seemed to work ok. The problem seems to recur when I've shutdown and then start up again some hours later. Usually it's fine for 2-3 days after I've created a new profile and then it recurs randomly. I wonder if any of this from the Command Terminal may help?

(process:2023): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed

(process:2023): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed [calBackendLoader] Using libical backend at /usr/lib/thunderbird/extensions/{e2fda1a4-762b-4020-b5ad-a41df1933103}/components/libical-manifest Warning: Warning: Using guessed timezone

 Europe/Brussels (UTC+0100/+0200).

This ZoneInfo timezone seems to match the operating system timezone this year. This ZoneInfo timezone was chosen based on the operating system timezone identifier "/etc/timezone: Europe/Brussels".

-- Exception object -- + _message (string) + stack (string) 343 chars + code (number) 0 + uri (string) 'http://autoconfig.gmail.com/mail/config-v1.1.xml' + constructor (function) 6 lines + message (string) + toString (function) 4 lines

-- Stack Trace -- Exception@chrome://messenger/content/accountcreation/util.js:132:5 ServerException@chrome://messenger/content/accountcreation/fetchhttp.js:262:3 FetchHTTP.prototype._response@chrome://messenger/content/accountcreation/fetchhttp.js:190:19 FetchHTTP.prototype.start/request.onerror@chrome://messenger/content/accountcreation/fetchhttp.js:117:36 1447760793397 addons.update-checker WARN Update manifest for messagingmenu@mozilla.com did not contain an updates property 1447760793645 addons.update-checker WARN Update manifest for {972ce4c6-7e08-4474-a285-3208198ce6fd} did not contain an updates property 1447760794545 addons.update-checker WARN Update manifest for thunderbird-hotfix@mozilla.org did not contain an updates property Error: [Exception... "Component does not have requested interface [calIOperationListener.onOperationComplete]" nsresult: "0x80004002 (NS_NOINTERFACE)" location: "JS frame :: resource://calendar/modules/calProviderUtils.jsm :: cPB_notifyPureOperationComplete :: line 634" data: no] Error: [Exception... "Component does not have requested interface [calIOperationListener.onOperationComplete]" nsresult: "0x80004002 (NS_NOINTERFACE)" location: "JS frame :: resource://calendar/modules/calProviderUtils.jsm :: cPB_notifyPureOperationComplete :: line 634" data: no]

F4Fun said

Hi, thanks for looking at the for me. No, I am not behind any firewall or proxy that I am aware of. I cannot think of anything preventing TB from connecting to the server. Internet access is fine with Firefox, Ubuntu Software Centre and Synaptic Package Manager. What's confusing me further is that after I renamed the default TB profile earlier today and then created a new profile, it all seemed to work ok. The problem seems to recur when I've shutdown and then start up again some hours later. Usually it's fine for 2-3 days after I've created a new profile and then it recurs randomly. I wonder if any of this from the Command Terminal may help? (process:2023): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed (process:2023): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed [calBackendLoader] Using libical backend at /usr/lib/thunderbird/extensions/{e2fda1a4-762b-4020-b5ad-a41df1933103}/components/libical-manifest Warning: Warning: Using guessed timezone Europe/Brussels (UTC+0100/+0200). This ZoneInfo timezone seems to match the operating system timezone this year. This ZoneInfo timezone was chosen based on the operating system timezone identifier "/etc/timezone: Europe/Brussels". -- Exception object -- + _message (string) + stack (string) 343 chars + code (number) 0 + uri (string) 'http://autoconfig.gmail.com/mail/config-v1.1.xml' + constructor (function) 6 lines + message (string) + toString (function) 4 lines

-- Stack Trace -- Exception@chrome://messenger/content/accountcreation/util.js:132:5 ServerException@chrome://messenger/content/accountcreation/fetchhttp.js:262:3 FetchHTTP.prototype._response@chrome://messenger/content/accountcreation/fetchhttp.js:190:19 FetchHTTP.prototype.start/request.onerror@chrome://messenger/content/accountcreation/fetchhttp.js:117:36 1447760793397 addons.update-checker WARN Update manifest for messagingmenu@mozilla.com did not contain an updates property 1447760793645 addons.update-checker WARN Update manifest for {972ce4c6-7e08-4474-a285-3208198ce6fd} did not contain an updates property 1447760794545 addons.update-checker WARN Update manifest for thunderbird-hotfix@mozilla.org did not contain an updates property Error: [Exception... "Component does not have requested interface [calIOperationListener.onOperationComplete]" nsresult: "0x80004002 (NS_NOINTERFACE)" location: "JS frame :: resource://calendar/modules/calProviderUtils.jsm :: cPB_notifyPureOperationComplete :: line 634" data: no] Error: [Exception... "Component does not have requested interface [calIOperationListener.onOperationComplete]" nsresult: "0x80004002 (NS_NOINTERFACE)" location: "JS frame :: resource://calendar/modules/calProviderUtils.jsm :: cPB_notifyPureOperationComplete :: line 634" data: no]

20151118 update On starting Firefox (FF) this morning I got the crash / apology screen, a blank tab and a 'new' FF tab. The apology screen told me a) crash b) close two tabs c) restart FF. I opted to restart. Having restarted, all appeared fine except I had to go through my preferences & reset them all, including my start page. Having done that, I tried to start Thunderbird (TB) and was told TB is already running and to start another window I should close the current window. When I shut down last evening, I closed TB & FF with Ctrl Q. I closed the pop-up and tried again but got the same result. On Command Terminal I started the profile manager, highlighted the 'new' profile I created yesterday and started TB. That now seems to be running and connecting to the gmail server ok. My perception is that both FF & TB are not shutting down and hence (possibly) TB is timing out on the gmail server. Is that a possibility? Thanks for your help, F4F

F4Fun said

F4Fun said

Hi, thanks for looking at the for me. No, I am not behind any firewall or proxy that I am aware of. I cannot think of anything preventing TB from connecting to the server. Internet access is fine with Firefox, Ubuntu Software Centre and Synaptic Package Manager. What's confusing me further is that after I renamed the default TB profile earlier today and then created a new profile, it all seemed to work ok. The problem seems to recur when I've shutdown and then start up again some hours later. Usually it's fine for 2-3 days after I've created a new profile and then it recurs randomly. I wonder if any of this from the Command Terminal may help? (process:2023): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed (process:2023): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed [calBackendLoader] Using libical backend at /usr/lib/thunderbird/extensions/{e2fda1a4-762b-4020-b5ad-a41df1933103}/components/libical-manifest Warning: Warning: Using guessed timezone Europe/Brussels (UTC+0100/+0200). This ZoneInfo timezone seems to match the operating system timezone this year. This ZoneInfo timezone was chosen based on the operating system timezone identifier "/etc/timezone: Europe/Brussels". -- Exception object -- + _message (string) + stack (string) 343 chars + code (number) 0 + uri (string) 'http://autoconfig.gmail.com/mail/config-v1.1.xml' + constructor (function) 6 lines + message (string) + toString (function) 4 lines

-- Stack Trace -- Exception@chrome://messenger/content/accountcreation/util.js:132:5 ServerException@chrome://messenger/content/accountcreation/fetchhttp.js:262:3 FetchHTTP.prototype._response@chrome://messenger/content/accountcreation/fetchhttp.js:190:19 FetchHTTP.prototype.start/request.onerror@chrome://messenger/content/accountcreation/fetchhttp.js:117:36 1447760793397 addons.update-checker WARN Update manifest for messagingmenu@mozilla.com did not contain an updates property 1447760793645 addons.update-checker WARN Update manifest for {972ce4c6-7e08-4474-a285-3208198ce6fd} did not contain an updates property 1447760794545 addons.update-checker WARN Update manifest for thunderbird-hotfix@mozilla.org did not contain an updates property Error: [Exception... "Component does not have requested interface [calIOperationListener.onOperationComplete]" nsresult: "0x80004002 (NS_NOINTERFACE)" location: "JS frame :: resource://calendar/modules/calProviderUtils.jsm :: cPB_notifyPureOperationComplete :: line 634" data: no] Error: [Exception... "Component does not have requested interface [calIOperationListener.onOperationComplete]" nsresult: "0x80004002 (NS_NOINTERFACE)" location: "JS frame :: resource://calendar/modules/calProviderUtils.jsm :: cPB_notifyPureOperationComplete :: line 634" data: no]

20151118 update On starting Firefox (FF) this morning I got the crash / apology screen, a blank tab and a 'new' FF tab. The apology screen told me a) crash b) close two tabs c) restart FF. I opted to restart. Having restarted, all appeared fine except I had to go through my preferences & reset them all, including my start page. Having done that, I tried to start Thunderbird (TB) and was told TB is already running and to start another window I should close the current window. When I shut down last evening, I closed TB & FF with Ctrl Q. I closed the pop-up and tried again but got the same result. On Command Terminal I started the profile manager, highlighted the 'new' profile I created yesterday and started TB. That now seems to be running and connecting to the gmail server ok. My perception is that both FF & TB are not shutting down and hence (possibly) TB is timing out on the gmail server. Is that a possibility? Thanks for your help, F4F

20151118 Update 2 I have just attempted to open a link from an email in TB and got the following pop-up; "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system." I've had this a few times and recently 'refreshed' FF. that seemed to resolve the problem for a few days but then reverted to the above described problems.

F4Fun said

F4Fun said

F4Fun said

Hi, thanks for looking at the for me. No, I am not behind any firewall or proxy that I am aware of. I cannot think of anything preventing TB from connecting to the server. Internet access is fine with Firefox, Ubuntu Software Centre and Synaptic Package Manager. What's confusing me further is that after I renamed the default TB profile earlier today and then created a new profile, it all seemed to work ok. The problem seems to recur when I've shutdown and then start up again some hours later. Usually it's fine for 2-3 days after I've created a new profile and then it recurs randomly. I wonder if any of this from the Command Terminal may help? (process:2023): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed (process:2023): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed [calBackendLoader] Using libical backend at /usr/lib/thunderbird/extensions/{e2fda1a4-762b-4020-b5ad-a41df1933103}/components/libical-manifest Warning: Warning: Using guessed timezone Europe/Brussels (UTC+0100/+0200). This ZoneInfo timezone seems to match the operating system timezone this year. This ZoneInfo timezone was chosen based on the operating system timezone identifier "/etc/timezone: Europe/Brussels". -- Exception object -- + _message (string) + stack (string) 343 chars + code (number) 0 + uri (string) 'http://autoconfig.gmail.com/mail/config-v1.1.xml' + constructor (function) 6 lines + message (string) + toString (function) 4 lines

-- Stack Trace -- Exception@chrome://messenger/content/accountcreation/util.js:132:5 ServerException@chrome://messenger/content/accountcreation/fetchhttp.js:262:3 FetchHTTP.prototype._response@chrome://messenger/content/accountcreation/fetchhttp.js:190:19 FetchHTTP.prototype.start/request.onerror@chrome://messenger/content/accountcreation/fetchhttp.js:117:36 1447760793397 addons.update-checker WARN Update manifest for messagingmenu@mozilla.com did not contain an updates property 1447760793645 addons.update-checker WARN Update manifest for {972ce4c6-7e08-4474-a285-3208198ce6fd} did not contain an updates property 1447760794545 addons.update-checker WARN Update manifest for thunderbird-hotfix@mozilla.org did not contain an updates property Error: [Exception... "Component does not have requested interface [calIOperationListener.onOperationComplete]" nsresult: "0x80004002 (NS_NOINTERFACE)" location: "JS frame :: resource://calendar/modules/calProviderUtils.jsm :: cPB_notifyPureOperationComplete :: line 634" data: no] Error: [Exception... "Component does not have requested interface [calIOperationListener.onOperationComplete]" nsresult: "0x80004002 (NS_NOINTERFACE)" location: "JS frame :: resource://calendar/modules/calProviderUtils.jsm :: cPB_notifyPureOperationComplete :: line 634" data: no]

20151118 update On starting Firefox (FF) this morning I got the crash / apology screen, a blank tab and a 'new' FF tab. The apology screen told me a) crash b) close two tabs c) restart FF. I opted to restart. Having restarted, all appeared fine except I had to go through my preferences & reset them all, including my start page. Having done that, I tried to start Thunderbird (TB) and was told TB is already running and to start another window I should close the current window. When I shut down last evening, I closed TB & FF with Ctrl Q. I closed the pop-up and tried again but got the same result. On Command Terminal I started the profile manager, highlighted the 'new' profile I created yesterday and started TB. That now seems to be running and connecting to the gmail server ok. My perception is that both FF & TB are not shutting down and hence (possibly) TB is timing out on the gmail server. Is that a possibility? Thanks for your help, F4F

20151118 Update 2 I have just attempted to open a link from an email in TB and got the following pop-up; "Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system." I've had this a few times and recently 'refreshed' FF. that seemed to resolve the problem for a few days but then reverted to the above described problems.

@christ1

I just ran the command you gave me above,

openssl s_client -connect smtp.gmail.com:465

I got:

xxxx@xxxxLC22UP:~$ openssl s_client -connect smtp.gmail.com:465 CONNECTED(00000003) depth=2 C = US, O = GeoTrust Inc., CN = GeoTrust Global CA verify error:num=20:unable to get local issuer certificate verify return:0 --- Certificate chain

0 s:/C=US/ST=California/L=Mountain View/O=Google Inc/CN=smtp.gmail.com
  i:/C=US/O=Google Inc/CN=Google Internet Authority G2
1 s:/C=US/O=Google Inc/CN=Google Internet Authority G2
  i:/C=US/O=GeoTrust Inc./CN=GeoTrust Global CA
2 s:/C=US/O=GeoTrust Inc./CN=GeoTrust Global CA
  i:/C=US/O=Equifax/OU=Equifax Secure Certificate Authority

--- Server certificate

MIIEgDCCA2igAwIBAgIIS9Sb0M/irpgwDQYJKoZIhvcNAQELBQAwSTELMAkGA1UE BhMCVVMxEzARBgNVBAoTCkdvb2dsZSBJbmMxJTAjBgNVBAMTHEdvb2dsZSBJbnRl cm5ldCBBdXRob3JpdHkgRzIwHhcNMTUxMTEyMTkwMzIzWhcNMTYwMjEwMDAwMDAw WjBoMQswCQYDVQQGEwJVUzETMBEGA1UECAwKQ2FsaWZvcm5pYTEWMBQGA1UEBwwN TW91bnRhaW4gVmlldzETMBEGA1UECgwKR29vZ2xlIEluYzEXMBUGA1UEAwwOc210 cC5nbWFpbC5jb20wggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC3ppZG 9jxYdfN51OCDbRbY5q4w5i8iQLWrbKONSE1iPiK1RB2Dqg01I1kat9MJyQ468iuN t3mJSrG4O+gCVAnkhID3JnzQqbRlwuBJq8crv7nXDfhWy+m/V9WJdgAmX0EyBpi5 5z+MVjUWEyqqPcEqJy9ETr9flPSiDkCEYRxl++UaIRm/JhZaRjmbn6sWK4cs1qkn bFzQffMoalMOnfmKDGHxzdgzD8ODdkV3QxVtiLG1joOpw2zzTVnPyu9wdkRazCqB e/B1UYAZYxImb6O0F7wOLNCH4I0FVQ+z+5gCKoI2EsK4vxwegE3BFmHq5B8B6h3m Q+60PYV21kk3aUvdAgMBAAGjggFLMIIBRzAdBgNVHSUEFjAUBggrBgEFBQcDAQYI KwYBBQUHAwIwGQYDVR0RBBIwEIIOc210cC5nbWFpbC5jb20waAYIKwYBBQUHAQEE XDBaMCsGCCsGAQUFBzAChh9odHRwOi8vcGtpLmdvb2dsZS5jb20vR0lBRzIuY3J0 MCsGCCsGAQUFBzABhh9odHRwOi8vY2xpZW50czEuZ29vZ2xlLmNvbS9vY3NwMB0G A1UdDgQWBBSfeOyCPcmqprmS+YLrehM8K2VWjTAMBgNVHRMBAf8EAjAAMB8GA1Ud IwQYMBaAFErdBhYbvPZotXb1gba7Yhq6WoEvMCEGA1UdIAQaMBgwDAYKKwYBBAHW eQIFATAIBgZngQwBAgIwMAYDVR0fBCkwJzAloCOgIYYfaHR0cDovL3BraS5nb29n bGUuY29tL0dJQUcyLmNybDANBgkqhkiG9w0BAQsFAAOCAQEAMXMXOrEPQnNdaVCG M7AL6Vn988DDJkrcnKtrElFkITNeQWzMdeNH4AQs9r7z0KDvjZKEs8dbPZam1puN oW4FvklUAa8jY8KhxmFok0jJnLhlsAG4HXWanoNz9n18tRcvtjUifnqTyIjPM2Iu 5ZulNvP/E4Gu+G0rAek78CqzFScOs0/Mkk4L8dFpWeAmUVFmC+HG2Gek0Pjl6ZAO O4l7u4/2sNQHbstExnbCDnMBE/HdGcTlxJvLMCll2MArSOXWaq5Uwtahxt+CuV2R jKWChefft/VOdek51MmXrJH3H8FjJkDcnnPsy6cft/w2mK24tXADPqmYpcF4tU4q Pnox+A==

subject=/C=US/ST=California/L=Mountain View/O=Google Inc/CN=smtp.gmail.com issuer=/C=US/O=Google Inc/CN=Google Internet Authority G2 --- No client certificate CA names sent --- SSL handshake has read 3727 bytes and written 421 bytes --- New, TLSv1/SSLv3, Cipher is ECDHE-RSA-AES128-GCM-SHA256 Server public key is 2048 bit Secure Renegotiation IS supported Compression: NONE Expansion: NONE SSL-Session:

   Protocol  : TLSv1.2
   Cipher    : ECDHE-RSA-AES128-GCM-SHA256
   Session-ID: 5CB0E2439C05C8B29DCC8EA5AB8217E5795C44C6F38DCDB4734C3A44BDA5B9B9
   Session-ID-ctx: 
   Master-Key: 22F7D4D4DA16930A76055C6F597767CA6DA365FC44E6A39882F9F2BF59BE69B19398CD5466D424CFCF674C6A03FE159E
   Key-Arg   : None
   PSK identity: None
   PSK identity hint: None
   SRP username: None
   TLS session ticket lifetime hint: 100800 (seconds)
   TLS session ticket:
   0000 - 2e b0 b8 35 8a dd 0d 40-f9 61 9a a1 10 79 1d 82   ...5...@.a...y..
   0010 - 05 79 fb f7 b4 37 2b 2e-48 37 d8 7b 57 ee dc f9   .y...7+.H7.{W...
   0020 - 57 16 c9 69 0f cf 04 98-28 39 d4 84 7e 85 ee e6   W..i....(9..~...
   0030 - ce 26 83 23 ed fd 17 1f-86 4b 11 04 fc dd c7 08   .&.#.....K......
   0040 - 64 6f 30 cc c5 e4 0c 27-20 c7 80 36 f3 3b be e4   do0....' ..6.;..
   0050 - 96 35 00 b2 a6 58 99 51-1e e0 38 61 d5 6c d6 a1   .5...X.Q..8a.l..
   0060 - 60 a3 7a cd d3 c3 8f be-c3 0c 02 40 fe 32 e1 52   `.z........@.2.R
   0070 - 1f 5d 3a 22 a5 6c 95 fc-e1 ef 95 4f c6 27 15 1f   .]:".l.....O.'..
   0080 - c2 a4 5f ef bd 7f 27 3b-f7 61 2d 7a f3 9a 13 c5   .._...';.a-z....
   0090 - 58 4c 14 1f bf b9 13 2c-39 31 35 36 08 c8 c9 c9   XL.....,9156....
   00a0 - 04 5d dc 84                                       .]..

   Start Time: 1447841478
   Timeout   : 300 (sec)
   Verify return code: 20 (unable to get local issuer certificate)

--- 220 smtp.gmail.com ESMTP da10sm2043846wjb.22 - gsmtp

Is that what you would expect? Thanks

I wonder if any of this from the Command Terminal may help? [calBackendLoader] Using libical backend at /usr/lib/thunderbird/extensions/{e2fda1a4-762b-4020-b5ad-a41df1933103}/components/libical-manifest Warning: Warning: Using guessed timezone

This is related to Lightning. Verify you've set the timezone properly in Lightning. But I doubt is has got anything to do with your connection problems.

Since things seem to work after creating a new profile, try to start Thunderbird in safe mode the next time you run into the problem again.

I just ran the command you gave me above, openssl s_client -connect smtp.gmail.com:465 xxxx@xxxxLC22UP:~$ openssl s_client -connect smtp.gmail.com:465 CONNECTED(00000003) depth=2 C = US, O = GeoTrust Inc., CN = GeoTrust Global CA verify error:num=20:unable to get local issuer certificate verify return:0 Is that what you would expect?

Not exactly. See this article. http://serverfault.com/questions/671616/apache-ssl-unable-to-get-local-issuer-certificate

This may be a server issue (perhaps intermittent). Verify whether you do have all the intermediate certs in your Thunderbird certificate store. The same goes for Firefox.

When I run the openssl command I do get:

> openssl s_client -connect smtp.gmail.com:465 CONNECTED(00000003) depth=3 C = US, O = Equifax, OU = Equifax Secure Certificate Authority verify return:1 depth=2 C = US, O = GeoTrust Inc., CN = GeoTrust Global CA verify return:1 depth=1 C = US, O = Google Inc, CN = Google Internet Authority G2 verify return:1 depth=0 C = US, ST = California, L = Mountain View, O = Google Inc, CN = smtp.gmail.com verify return:1 --- Certificate chain

0 s:/C=US/ST=California/L=Mountain View/O=Google Inc/CN=smtp.gmail.com
  i:/C=US/O=Google Inc/CN=Google Internet Authority G2
1 s:/C=US/O=Google Inc/CN=Google Internet Authority G2
  i:/C=US/O=GeoTrust Inc./CN=GeoTrust Global CA
2 s:/C=US/O=GeoTrust Inc./CN=GeoTrust Global CA
  i:/C=US/O=Equifax/OU=Equifax Secure Certificate Authority

Firefox is already running, but is not responding.

http://kb.mozillazine.org/Profile_in_use

The same applies to Thunderbird.

Thanks christ1, I'll look at all of that in more detail after a good night's sleep. I've just scanned the kb article re profile in use and need to digest that along with all the other info you posted. In the meantime, I upgraded to Ubuntu 15.10 in an effort to see if that helped. Apparently not, sadly. I got profile in use again with TB.

F4Fun said

Thanks christ1, I'll look at all of that in more detail after a good night's sleep. I've just scanned the kb article re profile in use and need to digest that along with all the other info you posted. In the meantime, I upgraded to Ubuntu 15.10 in an effort to see if that helped. Apparently not, sadly. I got profile in use again with TB.

updated 20151124

After upgrading to Ubuntu 51.10: 1. I removed all Thunderbird (TB) and Firefox (FF) profiles and programs 2. In an effort to be sure the profiles had been removed, i checked for profiles using the terminal and nautilus and could not find any. 3. Installed FF and TB from Ubuntu Software Centre. I managed to run Thunderbird for two days without any apparent problems. Opening links from emails into FF worked too. The calendar function was not enabled initially but for some reason I don't understand, reappeared on day 2. I wonder if there's not an old profile somewhere that TB is linking back to? 4. Day 3. on start-up, FF appeared to be fine. TB started but would not connect to gmail server as has been the case for 3-4 weeks. I've just removed the TB profile, created a new profile and started TB again. At start up, I disabled Lightning Calendar and restarted TB. It now connects to the gmail server.

Deleting the profile and rebuilding the IMAP folders and contents is not time efficient. Thus any suggestions about resolving this would be appreciated. Thanks

20151202 Update

After deleting Thunderbird (TB) and Firefox (FF) profiles again, removing and reinstalling TB and FF, I've run for about 1 week without any Lightning calendar add-on and without any apparent problems. Ubuntu has just added updated TB + Lightning + Google calendar synch updates. Will enable those and see if the problem was in fact Lightning.

When running Thunderbird 38.4.0 (currently the latest version), you should also have Lightning 4.0.4.1. It's available from AMO. https://addons.mozilla.org/en-US/thunderbird/addon/lightning/

Note, if you run the Thunderbird version provided by Ubuntu, you must also use Lightning version provided by Ubuntu.

Do not mix up vanilla versions from Mozilla and versions provided by Ubuntu.

christ1 said

When running Thunderbird 38.4.0 (currently the latest version), you should also have Lightning 4.0.4.1. It's available from AMO. https://addons.mozilla.org/en-US/thunderbird/addon/lightning/ Note, if you run the Thunderbird version provided by Ubuntu, you must also use Lightning version provided by Ubuntu. Do not mix up vanilla versions from Mozilla and versions provided by Ubuntu.

Thanks christ1 It appears that I am running Mozilla Thunderbird 38.4.0 and Ubuntu Firefox 42.0 at the moment. I think that's happened as I was concerned about where and how to get all the necessary libraries for Mozilla Firefox & hence used the Ubuntu version to be sure I got the necessary libraries. I'll now try the above Lighting 4.0.4.1 addon to my Mozilla TB and see if my previous problem recurs. Hopefully, not. Thanks for the help