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I ask a person to send me a signed email so that i can send them an encrypted email. How is this process supposed to work in thunderbird? I receive a signed email, what next? Clearly, thunderbird sees the signature but does not add the public key to the contact. This is in contradiction with [page] that states: The standard way of distributing a person's certificate is to send a digitally signed email. If you have received a signed email from your correspondent, click the email to view it. If Thunderbird considers the email's signature and the sender's certificate valid, it will automatically be imported and available when you attempt to encrypt an email to that correspondent using the S/MIME technology. If you don't have a signed email from your correspondent yet, you could ask them to send a digitally signed email to you.

Note that certificates issued by CAs may have a short validity period. Certificates are no longer usable after the validity period has expired. In that case your correspondent will have to obtain a new certificate. Once that happened they will be able to send you a new digitally signed email with a valid certificate.

Organizations that operate an LDAP server may configure their server to store S/MIME certificates. If an LDAP server is configured, Thunderbird may automatically query the LDAP server if it needs to obtain a S/MIME certificate.

To review the list of S/MIME certificates that you already have, you can use Thunderbird's Certificate Manager.

The certificate shows that it is valid, yet, clicking reply gives "key issues" which shows no key available. Similarly, if I sign an email with pgp key and send it, thunderbird sees that it is signed but tells me that i need to obtain public pgp key. So it seems that signatures and encryption are completely unusable.

On a site which has a popup on click, that's not blocking by the latest version of the browser. Have checked all settings and cleared cached data. Didn't solved the problem.

I cannot find the auto-fill options in settings. Within settings I have found autofill for bank cards, but that is the only option. I am trying to turn on autofill personal details such as address etc.

Please help!

I recently deleted the complete browzing history but now no matter what I try, It will no longer save any browsing history. what can I do to recover back to saving it?

I have been using Firefox for years. Recently the site locks up and I have to close Firefox via task manager. Is there a fix. I am a Microsoft user. Other browsers like Edge do not freeze’

I have some questions about Thunderbird email. If an email is suspected as being 'junk' do I just delete the email and will future emails be blocked from that sender? I don't actually open the email.

Related to this, I usually 'unsubscribe' from marketing emails, but when I click on the 'unsubscribe' many ask for my email as "verification". Why? They HAVE my email to which they've just sent their junky marketing info. I don't usually respond. So how can I unsubscribe without sending my email address, which they already have. If I just see it is marked as 'junk', and I just delete without opening it, is this as good as "unsubscribing"? Is this request for my email necessary or a phishing scam?

Thunderbird stopped working. I received the following message - "Add Security Exception You are about to override how Thunderbird identifies this site. Legitimate banks, stores and other public sites will not ask you to do this. Location: smtp.optusnet.com.au:25 This site attempts to identify itself with invalid inforation The certificate belongs to a different site, which could mean that someone is trying to impersonate this site

Permanently store this exception"

I have clicked on 'Confirm Security Exception" but I still can't send or receive emails.

Hello,

Thunderbird Version 128.6.0 Security: 13 vulnerabilities found. Highest value 8.8 (Severe) Details: https://nvd.nist.gov/vuln/search/results?form_type=Advanced&results_type=overview&search_type=all&cpe_version=cpe%3A%2F%3AMozilla%3AThunderbird%3A128.6.0

Regards, Werner Bulich

Something about the behaviour of the browser has caught our attention.

There are various possible explanations for this:

You are browsing and clicking at a speed much faster than expected of a human being.
Something is preventing JavaScript from working on your computer.
There is a robot on the same network (IP 24.126.194.0) as you.

Any suggestions?

I see this question was asked before (https://support.mozilla.org/en-US/questions/1415951) but the thread is now archived and I don't think the concern of the poster was understood/answered.

Your Thunderbird profile contains all the credentials needed to "be you" by having full access to all linked email accounts. In order to protect these accounts a Private Password can be created. It prevents someone trying to use Thunderbird as you (using your profile) from seeing the passwords or establishing connections to the email servers.

The question I have (and I believe was being asked) is, does using a Private Password actually encrypt the account credentials, or does it just block someone when they're using the Thunderbird program? Asked another way, would a bad actor with access to the profile and access to appropriate sleuthing tools be able to recover the credentials--from the files alone--thus bypassing the private password of the Thunderbird program?

Semaphore.social is a mastodon/fediverse web client. I've been using it without issue up to now and it has not updated recently.

After a few hours running the CPU usage of Firefox becomes very high (25-50%) and the about:performance shows that it is due to this tab, which shows at values from 110 to 160% or thereabouts.

I haven't noticed this before updating to Firefox 134.0 so I suspect it may be a Firefox regression.

However I cannot work out what the cause is, how to fix it, or if I should file a bug on it.

Any ideas on how I can fix this?

outrageous, i moved from windows to debian for the purpose of exceling my ram capacity on this low spec netbook with 4GB 3.7GB usable with emmc chip and a celeron n4000 cpu turns out ff eats just like in windows.

I am not an expert just savy, remember the time when upgrading from 32MB to 64MB was a big leap? well where the hell did 4GB of ram became obsolete? so there's no windows conspiracy just exponential ram usage?

Is there a different version of FF i could use for this 4GB machine? non-upgradable I could always try vivaldi or look else where but i trust FF for base security. I am using ublock origin on the machine too and 1 custom theme but i doubt that fixes the root cause. Is all the internet in the 2020s this ram voracious beast?

upon loading a empty tab FF uses 500MB for itself forget about the 64MB system ram from the 90s is FF 2025 really so complex or is this a conspiracy? then i load startpage.com and it uses 200MB!! of ram just on that search form man.

The increasing volume of spam is getting annoying. If I filter spam messages they get put aside, and that doesn't hurt the spammer. What I would like is a reject option so that the spammer gets a bounced email. that will really annoy him and perhaps 'encourage' him to not spam me.