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I know there's [[an article|https://support.mozilla.org/en-US/kb/sync-custom-preferences#w_sync-custom-preferences]] on how to sync custom preferences. I wanted to sync my toolbar customizations and some other preferences like disabling disk caching. And I don't even have other firefox instances, instead I just want to sync only on one device, so that I can continue the same setup when I signin later on the same device.

I've tried to add services.sync.prefs.sync.browser.uiCustomization.state, "services.sync.prefs.sync.browser.cache.disk.enable" and set it to true. But it doesn't work. What am I missing? No one seems to address this. May I am missing something.

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.

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

Using FF 101 on Andtoid phone. If I do not use Android's "general" PW then how do I protect FF PWs if I

lend to a friend for a minute? There's no primary PW. So how's it done? Is there any change FF will ever have a primary (master) PW again? Thanks

I use an addon to mute all tabs by default. The problem is that muted tabs have the MUTED text, which shrinks the size of the tab name/title. My old eyes can't deal with that very well.

Is there any way to prevent this text from showing up globally? Thanks.

When I click on the Firefox icon to start browsing, the Zoom meeting program opens automatically! How do I prevent that from happening?

Thank you for your help.

When on Firefox, I sometimes fill out a form on a website for a variety of reasons, i.e. requesting a document. After doing so, I can find no record that it was sent. My primary email is [edited email from public] @gmail.com. Is that what is used to send it? If so, I cannot find any record of it when I check "sent" items on that account. Please tell me where i can find that record? Steve C

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 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.

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'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

My bookmarks toolbar is empty. When looking through the bookmarks menu, it shows that none of my bookmarks have been removed, and they are all still listed as being present in the Bookmarks toolbar, but they are not displayed in such. To be clear, bookmarks toolbar is enabled, and I have already verified its positioning in the customize toolbar pane. There is a strip of empty space where they used to be, but they are simply missing now. How do I fix whatever issue caused the toolbar to cease displaying my bookmarks?

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 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?

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

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 ?