Firefox Community Forum

After my Windows 10 laptop being in sleep mode I found my background picture changed and all my Firefox tabs missing (while my bookmarks, add-ons, history etc. saved, and all other apps functioning properly). Recently Closed Windows menu was inactive and using Restore option in Library had no effect (despite availability of recent saves).

I found out that Mozilla folder was just missing in %appdata% (e.g. Profile Folder in about:support leaded to a non-existent directory). No manual changes to Firefox settings/data were made and no new profiles created.

What might be the problem and are there any ways to restore my tabs?

Hi there! My linux crashed and I only have an access to the terminal now. I'm trying to save login information and bookmarks that were saved in the browser. I didn't use an account. So I'm trying to find a location in the linux system where it was saved. I used 'find' command with key words 'mozilla' and 'firefox' to find possible locations but I'm not sure that I covered everything. Maybe someone here knows exactly where I should look. Thank you for you help and advance :)

I have 2 laptops, one for work and one personally. I was looking to set-up firefox on my personal laptop as well but noticed I cannot open developer console on a specific element by pressing 'q' anymore after right clicking.

This is a significant feature and I would like to keep using it. Is it possible to enable this feature on my personal computer as well? Since it is still enabled on my work device.

Every time I try to change the resolution of YouTube videos, it only provides 360p as an option, with a "Missing options?" message that redirects me to Google help page that just says my browser might be out of date (I'm on most recent Firefox and Windows 10 updates). The quality is still stuck in 360p when I reboot Firefox in Troubleshooting mode, and there are no quality issues when I use a browser like Edge. What should I be checking to resolve the issue?

I have two notebooks with Firefox (NB1 and NB2). NB2 rebooted and Firefox restarted losing all open tabs; now I would like to bring the tabs from NB1 to NB2; both have synchronisation enabled, but when I go to ‘Settings, synchronisation’ on NB2 it says ‘Synchronising in progress’ and nothing happens. I've also tried going to NB1 and sending a tab to NB2; I select NB2 and nothing happens.

Edit bookmark box won't scroll or show me all my folders/subfolders: When are you going to fix this problem: https://support.mozilla.org/en-US/questions/968861

This used to work fine. I don't want to mess with userChrome.css to get it to work. It should just work like it used to.

Thanks very much...

I'm not sure exactly when this behavior started, but I've noticed that when I click a link to an XPI file on a third-party web-site, Firefox no longer prompts to install the extension.

For instance, when I click the outlined link in the first screenshot, the second screenshot shows what happens.

Hello! I have been having certain visual bugs occurring within the Firefox browser, I do not know what's causing them but am hoping someone can help! Firefox keeps on adding or changing translucent white boxes to multiple websites, I have some from YouTube attached below but I've had this issue on multiple websites. I'm using an ARM architecture Surface Pro X and when I reached out to Microsoft they couldn't help me since the error was just in Firefox.

With Yahoo (and other sites) suddenly every single time I am required to use the "authenticator app" routine. I've gone for months or even years with persistent sign-ins before. What happened? How do I get back?

It's like I'm in private mode - but I'm not in private mode.

I want to turn off the hover preview feature. First I went in settings, but that disabled only the thumbnail (browser.tabs.hoverPreview.showThumbnails in about:config is set to false and saved). Then I went in about:config and manually set browser.tabs.hoverPreview.enabled to false as well, that disables the unwanted feature completely.

But every time I restart the browser it's turned back to true (just hover.Preview.enabled, not hover.Preview.showThumbnails). Can I save my settings? It's annoying that I can't opt out.

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Hello, I did everything mentioned in support articles, but the tabs on firefox are still crashing frequently, sometimes the first I open, sometimes it's the third... But it is making my work really difficult. Here are IDs of some of the crash reports (i found that I should post them here to get help) bp-1362556a-479e-4d29-8d25-24d060240827 bp-f743f721-6668-44af-a590-f058d0240827 bp-abbc2e52-a121-41f2-9275-d73e60240827 bp-74137ee7-cfe7-4362-a450-567500240827 bp-ca2327bf-99b5-4f2d-9e08-42dd00240719

Please help Thanks