Diễn đàn hỗ trợ Firefox

I would like to disable automatic session restore completely. When I restart my PC, crashes or anything like that, I do not want Firefox to restore my previously opened tabs or windows. When I open firefox after a system reboot / crash, I want to only open my default home page. Only if I manually click History > Restore Previous Session should firefox ever restore my session, otherwise never restore my sessions.

I tried unchecking Settings > Startup > Open previous windows and tabs, and also tried following this article: https://support.mozilla.org/en-US/questions/1182594

My sessions still restores after my computer restarts or crashes.

Why do I want this? When I reboot my computer, I want a clean slate to start from scratch, not the dozens of pages (and other software) I had open from my previous session.

I am running linux mint btw.

i have a big problem with settings of privacy and security. the problem is i cant edit this option ( Allow Firefox to automatically trust third-party root certificates you install ) and its greyed out . i made everything ( refresh - troubleshoot - uninstall ) and with the first click on singing my account on Firefox and add my restore my add-ons after setting up windows this option become unavailable (greyed out) and cant edit it. i need a solution without going to set up a new windows because its so tiring to set up a new windows to edit this option. please give me a solution its emergency. thanks a lot.

After my bitwarden add-on failed me, I remembered ChatGPT helping me with this another time - but I got it wrong. I right clicked the extensions button (I have 3 add-ons falling under that button) and removed from tool bar, thinking I could then reinstall it and the Bitwarden issue would rectify.

Instead, the extension icon disappeared, and is nowhere to be located. ChatGPT wants to do some reconfiguring but surely there's a better way. I have looked in "customise toolbar" (ie, right click toolbar, click customise toolbar and look for the icon" - but the puzzle piece icon is not there.

Surely I have hidden the puzzle piece icon somehow and I need to do some sort of magic to make it reappear... Have never had this issue with Firefox previously.

When attempting to access the Twitch website in normal browsing mode, the page does not load properly. Instead of the site rendering, I only see a black screen with an infinite loading spinner.

This issue does not occur in private browsing mode (incognito), Twitch loads normally there.

I found that performing a browser reset temporarily resolves the issue, but after some time the problem returns. Continuously resetting the browser is not a practical solution.

Additional details:

   Browser version: 141

   Steps to reproduce:

       Open Firefox in normal mode

       Navigate to https://twitch.tv

       Observe black screen with loading spinner

   Expected result: Twitch should load normally

   Actual result: Page remains blank with a loading spinner

   Private browsing mode works correctly

Please advise on a permanent fix or steps to diagnose this issue.

Something or somebody emptied my bookmarks. I tried the import/restore routine but was told that Firefox "was unable to process the backup file." I also tried System Restore without success. Can you help me? I don't want to leave Firefox, but the problem reoccurs, which is maddening and time-wasting. Thanks, Bruce Berckman

I am now receiving this notice for more and more commonly accessed websites. I get the message if I have https only selected or not selected. Currently receiving for Lowes, Home Depot, American Airlines and more. I can go to a Firefox 135.0.1 browser on a separate desktop accessing the internet through the same router and do not have issues. I suspect I have been upgraded by Mozilla into a less functional browser version for whatever reason that Mozilla does this.

Sample Messages:

American Airlines Access Denied You don't have permission to access "http://www.aa.com/" on this server.

Reference #18.ea382f17.1754673395.2abc2b02

https://errors.edgesuite.net/18.ea382f17.1754673395.2abc2b02

Lowes Access Denied You don't have permission to access "http://www.lowes.com/search?" on this server.

Reference #18.89f8cd17.1754677280.265017bc

https://errors.edgesuite.net/18.89f8cd17.1754677280.265017bc

Since Flathub list the org.mozilla.firefox app as official, i hope this is the correct support channel.

Recently i switched from distro specific package managers to flatpak as my application provider. The firefox flatpak won't play most embedded Video/Media on applications like in-browser fediverse clients, forums, blogs or wikis. Youtube works without any issues, Twitch is fine until there is an adbreak. Then it sometimes stops with the supported format/mime error (screenshot appended), only recoverable by cache-dismissive reload.

I used this Article https://support.mozilla.org/en-US/kb/audio-and-video-firefox and the links it contains to debug without any success. None of these samples play. just shows supported format/mime error https://test-videos.co.uk/bigbuckbunny/mp4-h265 At this test website 1. and 3. example won't play. I provided a screenshot before and after trying to click play on all the examples. https://www.tekeye.uk/html/html5-video-test-page

Contrary to the observed behavior about:support#media claims Software Decoding supported for everything except HEVC.

Chromium Flatpak has no such issues. So i copy the video url and play it with chromium. You can see: dire times.

I just transferred my data from an old computer with Windows 10 and now have Windows 11 on my new computer with a new version of firefox as my browser. How do I restore my bookmarks?

Hello, since I installed the Firefox 141.0 update today, I can't login to Reddit. I tried logging into Reddit right after updating Firefox, so did a System Restore to see if that corrected the problem, and it did.

To double check, I installed the Firefox 141.0 update again, and encountered the same problem logging into Reddit again, so it's definitely this new update causing the problem.

I've attached the Reddit messages I get. The 1st is the initial message, and the 2nd after I retry logging in.

I would greatly appreciate help with this.

Thank you,

Michael T.

Firefox loads in some images very distorted where they are pixelated and in negative color. It's not all images, it's also not on specific websites, it's just in general. Some websites don't have any problems and others are practically unusable. The icons in my tabs are often desaturated from their normal color as well, see the youtube icon for example the color is very muted versus the actual color of the logo.

I updated to Firefox 141.0 and now Google Maps is not working correctly. When I look for directions the map does not show the route. If I go to street view I get a black screen. Google maps is working fine on Edge or Google on the same pc.