Firefox 社群討論區

new computer. log into firefox, nothing is saved. pin an app, come back and it's gone. have to log into the app EVERY TIME. have to log into firefox too. why is it not saving anything???

I have my settings set to open PDF files in Adobe Acrobat, but the latest version of Firefox has started opening them in their own viewer, which is NOT near as useful, and I then have to download it to open in Acrobat like I used to do. Why? Is there any way to fix it back?

Background: On August 6th morning EST after the August 5 2026 update, attempting to use firefox lead to the window with the "end process" button so I had to close the browser multiple times and then the next time I opened firefox, the bookmarks and history were wiped. I was able to restore using a backup saved on the computer and continue as normal (aside from losing some Cookie Clicker progress, reinstalling Tampermonkey userscripts, and redoing browser extension settings) but now there's an issue with trying to backup firefox data.

Issue: Trying to back up my firefox data leads to a "There was a problem backing up. Try again in a few minutes."

When going to about:config and typing browser.backup.backup-debug-info, I get {"lastBackupAttempt":1786243812,"errorCode":9,"lastRunStep":13}

When looking at Broswer Console, there is an entry saying BackupService: Could not create C:\Users\USERNAME\Documents\Restore Firefox\desktop.ini: NotAllowedError: Could not write to `C:\Users\USERNAME\Documents\Restore Firefox\desktop.ini': failed to open file for writing (NS_ERROR_FILE_ACCESS_DENIED) BackupService.sys.mjs:4116:23 but I don't know how to address that.

MacOS 26.6, Latest Firefox. 153.0.3. Tabs are not restoring, since update to latest FF. Tab History shows old stale tabs, not the tabs that were present at time of exiting Firefox. I had closed those tabs. Is this an artifact of caching?

The active tabs should be stored at FF shutdown, not the old closed tabs prior to that. This Firefox quirk is both on my Mac Mini M4, and on my MacBook Pro M3. Kind of a pain in the neck to restore where I was. It's enough to make me reconsider this browser - which I have used for decades, using Windows, Linux and now MacOS.

I researched how to restore a session. It told me to go to History and click Restore Session. There is no line with that name, in my Firefox, on a Mac.

Under History the docs show 4 items before "Clear recent history...", I only have 1. Recently closed tabs 2. Recently closed windows 3. Search history. There is no Restore session.

The tabs that were open last session are in the start up window, and the check box is set to restore tabs and windows. But my tabs were not restored. (I only had a single window open.)

What can be done to "restore" previous behavior of Restore Tabs and Windows? Thanks for any and all assistance.

Why the h377 did firefox change the screen shot tool by removing it from the address bar AND delete the center search bar, along with changing the location of all my recent web visit from the along the bottom of the screen? This is annoying and unhelpful to pc users, I need these functions back like they were in order to us your site on my pc. I donot and will never use firefox on my phone. If these functions are gone, then I will have leave as well. Either that or remove the update from my pc and cease ALL further updates.

Racenet is a formguide put out by News Corp and subsribed to by mug punters like me but i am unable to download it with the message 403 ERROR the request could not be satisfiedbold text

I use a paid for subscription to Gemini AI. It often creates "visuals" for me apparently using JSON code. These do not show up at all. Moreover, the buttoms and other UI controls do not display well in Firefox. Is there a way to fix this?

When I use Facebook with my Firefox browser the site just has to many issues. The site keeps hanging up and just sort of stalls out when I try to access messages and notifications that I download from the site. I took the suggestion of clearing my cache. That did nothing. Clearing my history didn't make a difference either. Being this problem doesn't happen with Chrome or Safari, it must be a Firefox problem. So, what more can I do to make using Facebook with Firefox a better experience? Sure would appreciate help.

Please help, it looks like my passwords are not synced anymore on any Mozilla I use. I sue a Mozilla portable at home and a classic desktop on my office. The synchronyzation works for bookmarks, browse history and download history but not a single password is imported on my sessions ! My files are present : see screenshot01 so my passwords are here. Login.json contains data. So what's the problem. The debug mode said that : see screenshot 02 Thanks for the help

Last month I installed Firefox on my brand new Windows 11 PC. The PC is set up using UK English as the default language and all the applications, including Norton extensions in Firefox v 153.0.3 (64bit), install in English.

The one exception is the Norton AntiTrack extension downloaded and installed from MS Store. It installs in English on MS Edge, but on the same day installed from MS Store on Firefox in French.

I have uninstalled AntiTrack and Firefox from my PC and then reinstalled them after rebooting, but it still insists on reinstalling in French. I can find no way to change the language setting in AntiTrack.

Does anybody have any suggestions to solving this problem.

NB AntiTrack also installs in English on our Android tablet and phones.

Firefox popped up an offer to change the screen to dark, which I did. I don't like it, want to change it back. I went to settings but was unable to make the change.

Running on Windows 11. There are many supposed "solutions" on the Web, but none of them work. I have tried with: about:config, css files, etc. None of them work.

I like Firefox greatly, but this is so frustrating.

The developers have created a solution to a problem that didn't exist. The result is to make Firefox user clumsy.

It would have been nice if they - at the very least - had provided a way to change the 'Profiles' icon position on the menu.

Again, Firefox 153.0.1 (64-bit) on up-to-date Windows 11. Amd Ryzen 5, 6 core processor, 32 GB Ram, 500 GB SSD C drive = 197 GB free.

title sums it up mostly. I've entered troubleshooting mode; no discernible difference. When I switch profiles the issue is resolved even with the same YouTube account. Tried clearing the cache, nothing. Most recent version of Firefox, windows 11.