Firefox Support Forum

I was using Firefox on windows 10 laptop, everything was synced with my account. Now after switching to Ubuntu I can't see my bookmarks, Just an empty toolbar. Now I don't have access to my old laptop, I sold it.

Any help?

I have an extension (completely blank) that can't be deinstalled. I am trying to use the "refresh firefox feature" to get rid of it, but the button simply isn't where it should be. The text is german, but none if these Buttons are the one I seek.

For ‘few a few weeks now the option to choose where to save files has failed, even with the latest 101.0.1 (64-bit) on windows 11 Home. Any ideas?

This evening I changed the default location to my data area, so at least it will hopefully defaulting to ms 'downloads' folder.

OS Name Microsoft Windows 11 Home Version 10.0.22000 Build 22000

Hi,

I use Mendeley Web Extension to pull articles and other things from Firefox directly into my Mendeley library. I will usually rapidly read through the PDF file online before deciding to add it or not. For some unknown reason, Firefox blocks the use of Mendeley on PDF file, for security reasons, and I can no longer add them to my library. Most references are only available as PDF files making the add-on completely useless. Is there a security feature that I can disable to be able to use the extension again?

Kind regards,

Mathias

as of yesterday 6-10 i cannot sign into this site https://maps.harley-davidson.com/ I've tried disabling all the security i could think of. i can sign in if i use Microsoft edge or if i put fire fox in trouble shoot mode. in troubleshoot mode i can sign in but the site will not display anything. this was working just fine until yesterday Ive made no changes to anything. please help

Hi there

I've had firefox for years and never had much issues. I've never had this issue before the most recent update where now youtube videos constantly stutter. It's just Firefox as other browsers work fine. I've updated my graphics card and did a little bit of research but none of the fixes quite did it for me. In the past couple days I've always had Firefox crash on me twice, which hasn't happened before either. So I'm not sure what's going on, but I'm prone to point fingers at an update. I don't install extensions or themes, so the only extension I have really is uBlock Origin but that's been there forever. I've restarted my computer as well. It is not my resources, they are more than fine my RAM and CPU and Graphics Card. Task manager shows nothing is even above 50% (CPU, GPU, Memory) when playing the video. I've also tried creating a new profile and opening up a new profile. Same issue.

Can anyone suggest any fixes or is this a firefox update bug?

EDIT: This appears to be for all videos I am playing on Firefox. It also does not matter if I set it to the lowest quality, even 144p, it will still stutter nonstop.

In the last few weeks Firefox will not open even when using admin rights. NOTE: I have followed all available posts including multiple uninstalls (complete), deleting Firefox folders, reinstalling, etc. There have been no major (or known) changes to my Windows 10 Pro system. I run Heimdal Thor and Kaspersky antivirus protection and there have been no conflicts running both at any time. I also use Acronis Protection (I know it may seem like overkill but it works). I have turned off each of the above and Firefox still does not open. Firefox runs with no problems on my personal and work laptops. I am CompTia A+ Certified so somewhat knowledgeable (a little knowledge is a dangerous thing!) and have run sfc /scannow with no issues noted. Plus, two Heimdal support reps have logged onto my system, attempted to find a solution, found no issues with my system (Omen 880 even though I don't game). My wife is a dedicated Firefox user and wants it back.

I am trying to set youtube to always open in Youtube container , when i right click on the logo or name of the container it doesn't do anything , at previous version was fine , is there any issue with current version ? is there another way to enable youtube to open always in it's own container ?

A few days ago Firefox started opening in a small window in the upper left corner of the screen. This problem was earlier also posted by other users. So I have read all these topics and suggested solutions.

This is what I have tried: - removing xulstore.json - compatebility tab in properties - manipulating overlapping squares icon and dragging window to almost full screen - Reinstalling Firfox ( without removing Firefox completely on forehand)

So far nothing resolves this problem.

Please advise

When I pin a tab, then quit Firefox, the pin is lost forever.

Most other tickets I've seen are about restoring them, but I'm looking for some setting to change so that I can pin tabs.

My history is set to: Remember My setting to delete all cookies and site data on close is unchecked

Any ideas?

Thanks a million!

I have tried numerous times to copy over the contents of my Firefox default profile folder from a Windows 10 PC to a new Windows 11 PC. I followed all the instructions as far as I know (when either saving or pasting the folder contents, Firefox is off; successfully downloaded and installed Firefox on new PC creating a new default profile which is where I pasted the contents from previous PC's profile, etc.) When Firefox is restarted on the new PC, it is just the same as the new installation -- no bookmarks from the old profile show up, e.g.).

Any ideas for how to get this to work are greatly appreciated. I have a lot of bookmarks and need to be able to access them on new PC. (BTW, this approach worked just fine when I installed a new disk drive on the old PC about 5 years ago and brought all the Firefox profile data over - everything came over as expected. I wouldn't think the fact that this is a Windows 10 to Windows 11 porting has anything to do with it not working -- these are just profile folders.)

Would Synching the two PCs work better? Does Synch just add all the profile and password data on the two PCs together so that each ends up with the total of what was on the two individual PCs and nothing on either is lost? When I looked at Synch on new PC, it was not clear how to get it to point to the old PC - Add a New Device just seemed to point to a phone. Again, any help is much appreciated.

I'm trying to load a temporary add-on on my browser, but when I click the button "Load temporary add-on", nothing show up.

I tried to look for errors in the console or debugging tool, but nothing. With snap, I removed with the purge option my Firefox and install it again, but the issue still appears.

Some technical details: Ubuntu 22.04 LTS Firefox version 101.0.1 (64-bit) Mozilla Firefox Snap for Ubuntu canonical-002 - 1.0

My old 2009 MacBook Pro broke, got fixed, and now the backup won't transfer. So I need a new Firefox.

OS X El Capitan V10.11.6 is the latest this old computer will handle. On the mozilla.org download page, the app on the .dmg that gets downloaded says it wants OS X 10.12 or later.

I'd appreciate your suggestions.

--Gil

When I look up the error message I get, everyone I see who got it can't open Firefox, but I can open it fine. For me, I have Firefox as my default browser and when another program (tModLoader on Steam) tries to open it, it gives me "Profile Missing," "Your Firefox profile cannot be loaded. It may be missing or inaccessible." I don't know if it gives the same error for other programs because I can't think of any programs that open my default browser. When I switch my default browser to Edge, the program can open Edge fine.

I have a user whose Firefox has stopped working. It will start up, but nothing ever is displayed in the window. The address bar and buttons are all there, but nothing from a web site, just a white page. If I enter a url, or click on a bookmark the refresh button never changed to an 'X', but I can see traffic from her machine going across our firewall. Try to go into setup and it's the same thing. About:config displays nothing. It's all just a blank page. Other browsers seem to work fine.

I've tried refreshing, and I've uninstalled and reinstalled, but it didn't fix it. Any ideas?

Thanks.

I have used OneDrive with containers for several years for my clients. Recently I can't open OneDrive in a container, but I can open Outlook. Very frustrating. Any suggestions?

I have tried all of the suggested solutions here at Mozilla for how to delete a website URL from being autofilled: whenever I type 'pre', the autofill function fills in the rest of the website 'www.preply.com'. It was a horrible ESL teaching scam website, I only taught through it for a month last November then quit when they ripped me off. But now since last November, any time I type in 'pre'–I invariably see their annoying, shitty website :-( It is very annoying because it was a bad employer experience–and now I cannot ever remove them from Firefox :-(

I tried deleting it in the address bar with shift + delete, then also went into some obscure Firefox folder and deleted some file with Firefox closed (this was the supposed "solution"–it did NOT work).

Is there any way to solve this incredibly annoying issue? Or should I just switch to Chrome or Safari and give up? Very disappointed in how impossible Firefox makes deleting autofill URLS, really, REALLY BAD software programming. Any helpful or solution greatly appreciated thx :-)