Firefox Community Forum

When I have multiple tabs open, around the 6th tab, the entire computer freezes. I have to press the physical button to shut down and restart. This behavior started with the last Firefox update. It doesn't happen when I use Brave browser. What changed to cause this?

I'm running Mozilla Firefox for Linux Mint mint 100 - 1.0 version 141.0.3 (64 bit) on Linux Mint 22.1 Cinnamon. These are the latest versions of Mint and of Firefox for Mint.

Hello, For some time now, links in Gmail e-mails are not working properly on Firefox (MacOS). If I click on the same link on the e-mail within the Mail app of MacOS, or using Gmail in Safari, it works fine. Even in the Mail app case, the links open in Firefox, so the problem is in Gmail within Firefox. I've had problems with links in e-mails coming from Amazon (I bought an e-gift card who's link did not work) and also in e-mails from Clarivate (Web of Science Alerts, links to the e-mailed records, image attached). Any suggestion on how to fix this problem? Thanks in advance.

Pedro

Hello community, I'm an embedded systems developer and we have a ressource constraint IOT device which is using TLS1.2. When we use https:// to access the internal website of the device, Firefox does a complete TLS handshake for each asset to download which renders https:// almost unusable. This happens despite session resumption using session IDs is offered by the device. When accessing the device with Chrome or Edge there's only one handshake and all the following TLS sessions are resumed with the ID of the first handshake. In Firefox security.ssl.disable_session_identifiers is set to false.

Is it intended behaviour that Firefox ignores session IDs for TLS1.2?

Used Firefox version: 142.0 (64-Bit) Windows 11

Thanks in advance.

Johannes

I'm following up on https://support.mozilla.org/en-US/questions/1492943 which seems to have been archived without having been solved.

The issue is still present, I would like to use gemini in the sidebar chat with a different account than the "default" google account and/or an account sandboxed within a container.

It's a firefox issue because firefox doesn't allow for the sidebar chat to be containerised to use a different google account. BTW, It works for chatgpt but not for gemini.

Since about a week ago, possibly after the recent update, the tool bar icon of Firefox stoped working - now its a blank "document" icon. When hovering over the tool bar icon, the minimized version of the window displays the correct firefox icon over it, the desktop icon is also correct, but the blank tool bar icon persists. Reinstalling the program did not help.

It is a minor bug, but it's quite annoying when working with other text documents with similiar icons, or just with a lot of programs open at the same time.

Hi, Firefox updated my browser to version 142.0 on the 24 Aug 2025. After shutting down my PC and reopening the next day, all my opened tabs in the browser were removed and have dissapeared? I have checked the history folder, but only tabs from after the update are available. Where have they all gone and how do i recover them. Very frustrated !!!

I tried to switch to English (GB) from (US) for spell check when I type on any search bars or commenting on a post but it always Stays in (US) English. I added the (GB) version and chose it as my main language, and restarted the machine with no luck. Can you please advice on how to troubleshoot it?

Please see screenshots for reference.

Was just curious about cookies and what they are doig on my system, I know what they are and what they do but wondered how bad they are for privacy and as well as performace on my machine. I apparently have 2.6gb of cookies, that's a lot of 1s and 0s! I am now going to delete them, but wondered all this time, are all of these cookies recording my every move on the internet and selling this data back to advertisers so I can be easily targeted??? I have ad-blockers anyway, just wondered if there is a good cookie killer?? Or are there any settings in Firefox I have missed.. I did see I did not have the 'strict' controls set which I will do now. Thanks.

Hi, What settings do I need to change to completely clear the cache? I've tried everything I know, but I still have the problem that cookie settings, for example, can't be changed afterwards because they're stuck somewhere in the cache. When I open a new private window, the cache is completely empty. Why can't I do this with an existing window? By the way, I have: Firefox Developer - 143.0b2 (64-bit) on the aurora update channel.

Thanks, Dietmar

The Bookmarks toolbar is not working since the last Firefox update on my Windows Desktop computer. Lost all the previously saved tabs and can't restore or resave. There is a message "FOr quickaccess, place your bookmarks here on the bookmarks toolbar. ''Manage bookmarks but all I get is an empty History pop up window.

i've tried to import my data because i have moved to another computer, i tried importing the profiles folder yet nothing happened, so i tried deleting the profiles and it's now broken.

i've tried the password thing, didn't work and the profile one didn't work either.

FirefoxからGoogle Chromeの設定が感染したかのように変更された。 誰か特殊画面で音声をRealtekに戻す方法を教えてください。

ブラウザのマークを右クリックしたら５回連続で出せたので 音源を変更してしまったが、 変更後には特殊画面が出てこなくなり変更を治せない。

The settings in Google Chrome were changed as if they had been infected from Firefox. Can someone tell me how to restore the audio to Realtek on the special screen?

When I right-clicked on the browser icon, it appeared five times in a row, so I changed the audio source, but after the change, the special screen no longer appears and I cannot undo the change.

Several months ago, both my Firefox and my Thunderbird stopped working. Thanks to help from this website, both were repaired. New problems have occurred and I’m here again, hoping for help. My computer is a Dell XPS desktop, running Windows 11 (Home), upgraded from Windows 10. Both FF and TB are up to date.

So, problems: TB: I turn on the computer in the morning, have a small breakfast, then start TB. The Inbox appears on the screen and then the request for my password. When I type the first letter, it doesn’t appear. I type it again, it appears, and then I finish entering the password. Works fine after that. Well, almost. I want to delete several non-consecutive emails. What used to work was to hold down Ctrl key, then click on emails to be deleted, finally release Ctrl. Now what happens is the first email to be deleted is highlighted but when I click on the second email, the first email is unselected. Then I release Ctrl, press it once again, select first email, then additional emails to be deleted. They are all highlighted. FF: Inconsistent download times. I just tried to download a webpage from one of my bookmark folders. After about 30 seconds, with nothing showing, I closed the page, then tried downloading again. Another 30 seconds, same result. I closed FF then reopened it, tried loading the same page. It appeared in just a few seconds. Opened the Google webpage, clicked Maps and received the error shown. (First image) Clicked Try Again, Maps reappeared.

Sometime after these problems began, I noticed something different on my Task Bar. When FF was not running and I hovered the pointer over the FF icon, the name of the icon was displayed but was followed by the number 2 within parentheses. (See the image). The same thing for TB. Are these numbers somehow connected to the problems I am having with TB and FF?

Any help will be appreciated. Thanks.

My browsing history in Firefox on mac is incomplete. It used to show complete history, every site, and now only shows a few. How can I fix this to show all history?