Ajax Call Frequently Blocked by Firefox

We have an application running on Firefox and noticed that with new Firefox ESR, Ajax call (XMLHttpRequest ) from js script running on Firefox browser on thin clients see… (閱讀更多)

We have an application running on Firefox and noticed that with new Firefox ESR, Ajax call (XMLHttpRequest ) from js script running on Firefox browser on thin clients seems to be blocked frequently (same call succeed most of the time, but blocked from time to time). Issue was raised starting with Firefox 128.2.0esr), but in general persist with newer Firefox ESR. We tried replacing XMLHttpRequest with fetch which seems making no much difference so far.

kunling zeng 於 1 週前 詢問

Mike Kaply 最近回覆於 9 小時前

Deploying FireFox MSI with GPO: uninstall fails

Hi. On an Active Directory, we deploy Firefox (normal or ESR). It's OK. When we deactivate the link of the GPO, it's supposed to uninstall. But it doesn't (even if we del… (閱讀更多)

Hi. On an Active Directory, we deploy Firefox (normal or ESR). It's OK. When we deactivate the link of the GPO, it's supposed to uninstall. But it doesn't (even if we delete the GPO, specifying to uninstall at once).

The gpresult command on each computer doesn't show the GPO anymore, but Firefox is still installed.

( FYI, we used to do that with FrontMotion Community Edition, and it was always working (instal and uninstal). We even just tried the "last" (but old) ESR edition present on the FrontMotion site (CEESR-102), and it works. But FM CE version has stopped being developped. )

So, any idea about why the official Mozilla Firefox version (normal or ESR) doesn't uninstall?

Thanks by advance.

fepubs 於 5 天前 詢問

Mike Kaply 最近回覆於 9 小時前

New Preference clearOnShutdown Cache/Cookies/Storage is now v2

Dear Community, i had .cfg file with following settings to clean up some userdata after closing firefox: //Clean UP Cache etc. lockPref("privacy.sanitize.sanitizeOnShut… (閱讀更多)

Dear Community,

i had .cfg file with following settings to clean up some userdata after closing firefox:

//Clean UP Cache etc. lockPref("privacy.sanitize.sanitizeOnShutdown", true); lockPref("privacy.clearOnShutdown.cache", true); lockPref("privacy.clearOnShutdown.cookies", false); lockPref("privacy.clearOnShutdown.offlineApps", true); lockPref("privacy.clearOnShutdown.sessions", false);

This cleaned the "Storage" Folder in the Firefox Profile folder, but cookies and sessions where remaining, so the logins where active.

Now i saw that all useres have lots of folders in the "Storage/Default" folder. After some research i found out that this behavior startet at 02.10.2024.

I also found a new pref: privacy.clearOnShutdown_v2.cookiesAndStorage which was set to "false". No idea where this key came from? When I set this key to "Yes", the storage is cleared after closing Firefox. But so also all the cookies. Was there a change at the prefs?

And is ther any other solution to clear the Storage but remain the cookies?

Thank you in advance!

sn1.k 於 12 小時前 詢問

Mike Kaply 最近回覆於 9 小時前

Managed Bookmarks subfolder

Hello, I would like to create Managed Bookmarks for our company and distribute them via Group Policy. However, I am unable to create subfolders for these Managed Bookmar… (閱讀更多)

Hello,

I would like to create Managed Bookmarks for our company and distribute them via Group Policy. However, I am unable to create subfolders for these Managed Bookmarks, so they would all be in one folder and quite disorganized, which is why I need subfolders. Can I map this using a JSON file, and if so, could someone assist me with the structure of the JSON file?

Thank you in advance!

Kind regards

Username2025 於 1 週前 詢問

TyDraniu 最近回覆於 1 週前

security.cert_pinning.enforcement_level using a GPO?

Hi, I need to ask regardining this security.cert_pinning.enforcement_level. how can i set this value using the windwos server GPO? i could not find this even after copy… (閱讀更多)

Hi,

I need to ask regardining this security.cert_pinning.enforcement_level. how can i set this value using the windwos server GPO? i could not find this even after copying the firefox.admx file. could someone please guide me how can i acheive it?

I would really appreciate the help!

Regards Sheras

Sheras 於 4 週前 詢問

Mike Kaply 最近回覆於 1 週前

Conditional access policy

Login to o365 email does not work on Firefox browsers after enabling the Conditional Access policy based on compatible devices Firefox does not send device details, resu… (閱讀更多)

Login to o365 email does not work on Firefox browsers after enabling the Conditional Access policy based on compatible devices

Firefox does not send device details, resulting in a device incompatibility message

Does Firefox support this?

There is an example of missing device ID in the attachment

spie.michal 於 1 個月前 詢問

Mike Kaply 最近回覆於 1 個月前

Firefox ESR Update

We use Firefox ESR in our environment today, Is it possible to have a policy that would display "update required" message to end-users, or have it automatically update wi… (閱讀更多)

We use Firefox ESR in our environment today, Is it possible to have a policy that would display "update required" message to end-users, or have it automatically update without users opening the browsers.

Ayodeji David 於 1 個月前 詢問

Mike Kaply 最近回覆於 1 個月前

Auto updating in stages

Hi, I am in a company where there is 100 and more devices with firefox on it. Right now we are facing a problem where some of it are using version way back into the days … (閱讀更多)

Hi, I am in a company where there is 100 and more devices with firefox on it. Right now we are facing a problem where some of it are using version way back into the days such as version 100 115 117 and such. We enabled auto updating but it only updates to version 127 whereas the latest version is 132. We are required to open firefox again for multiple time b4 it gets the latest version. Is there any way to jump those stages and straight updates to the latest version?

LucasLau 於 2 個月前 詢問

Max Christian Pohle 最近回覆於 1 個月前

Managed/Enterprise Browser

I want to deploy a managed/enterprise version of Firefox to my entire company. Is that an option? Is there an Admin console where we can configure default URLs and manage… (閱讀更多)

I want to deploy a managed/enterprise version of Firefox to my entire company. Is that an option? Is there an Admin console where we can configure default URLs and manage extensions?

Alison Grant 於 1 個月前 詢問

TyDraniu 最近回覆於 1 個月前

install command of version 18.05

i want to add win32 app on intune and i need the ( install & uninstall command of my version 18.05 ) below uploaded images more details about my version that I downl… (閱讀更多)

i want to add win32 app on intune and i need the ( install & uninstall command of my version 18.05 )

below uploaded images more details about my version that I download it in my device.

wejdan.bawazeer 於 2 個月前 詢問

Mike Kaply 最近回覆於 2 個月前

Firefox Update for Windows 7 Pro 64 Bit

No matter which option I choose, I keep getting a message that tells me Firefox cannot be updated. The Oesr version wont update either. It tells me to update to 115.17 Oe… (閱讀更多)

No matter which option I choose, I keep getting a message that tells me Firefox cannot be updated. The Oesr version wont update either. It tells me to update to 115.17 Oesr and when I click on update I keep getting this error.

Fabulous Heathen 於 2 個月前 詢問

Mike Kaply 最近回覆於 2 個月前

Log-in with a certificate is not possible

With Firefox 115.14.0esr, 115.2esr and 128.xesr we can`t log in into a company website with a certificate. After the certificate login we end up on the WebSeal again. Htt… (閱讀更多)

With Firefox 115.14.0esr, 115.2esr and 128.xesr we can`t log in into a company website with a certificate. After the certificate login we end up on the WebSeal again. Http status 302 for pkmslogin.form and pkmscertpromptstagen is called ~12x repeatedly with 302 error each time and then jump back to the login screen.

desislava.ivanova 於 3 個月前 詢問

Mike Kaply 最近回覆於 3 個月前

Upgrading to Firefox ESR 128.2.0 from 115.15.0

Hi, Looking to upgrade our org to ESR 128.2.0 due to compatibility issues - most notably, embedded PDFs not loading due to Promise.withResolvers() not being implemented… (閱讀更多)

Hi,

Looking to upgrade our org to ESR 128.2.0 due to compatibility issues - most notably, embedded PDFs not loading due to Promise.withResolvers() not being implemented on versions prior to 121.

Curious to know if there are any issues or concerns with upgrading manually/pushing this version out - would like to ensure we don't cause further issues in attempting to resolve one.

ngreyling 於 3 個月前 詢問

Mike Kaply 最近回覆於 3 個月前

Support ECH or ESNI in 128.2.0esr

Hello, I installed Firefox 128.2.0esr. I set the next parameters in GPO for settings DNSOverHTTPS: "DNSOverHTTPS": { "Enabled": true, "Provi… (閱讀更多)

Hello,

I installed Firefox 128.2.0esr. I set the next parameters in GPO for settings DNSOverHTTPS: "DNSOverHTTPS": {

                      "Enabled":  true,

"ProviderURL": "https://safe.dot.dns.yandex.net/dns-query", "Locked": true, "Fallback": true }. But when checking via https://www.cloudflare.com/ru-ru/ssl/encrypted-sni/#results I get (screenshot in attachment). As you can see from the screenshot, DNS and SNI did not receive the coveted check marks. Secure DNS We weren’t able to detect whether you were using a DNS resolver over secure transport. Contact your DNS provider or try using 1.1.1.1 for fast & secure DNS. DNSSEC Attackers cannot trick you into visiting a fake website by manipulating DNS responses for domains that are outside their control. TLS 1.3 Nobody snooping on the wire can see the certificate of the website you made a TLS connection to. Secure SNI Anybody listening on the wire can see the exact website you made a TLS connection to.

In my browser / about:config: network.trr.mode = 2 network.trr.uri = https://safe.dot.dns.yandex.net/dns-query

In 128.2.0esr there is no protection against ESNI interceptions and ECH is enabled by default? Or is the problem that the DNS provider does not support the technology from Mozilla? Or what other settings we need use (via GPO)?

Thank you.

Mark Talala 於 4 個月前 詢問

Valentin 最近回覆於 4 個月前