Firefox Support Forum

I was trying to change some settings on Firefox and I accidentally closed it and lost all of my tabs. I have the setting enabled to open tabs from last browsing session, but I was messing with the extension OneTab and I lost my open tabs.

Just to be clear, it wasn't the fault of OneTab, this is was my fault for closing Firefox too quickly when it was restoring my tabs and I didn't allow it to finish.

Anyway, in attempting to recover my tabs, I have restored from backup my "sessionrestore-backups" folder; this didn't work. I have also restored my entire Mozilla folder in my profile; this also didn't work.

I also tried following this article (https://support.mozilla.org/en-US/kb/how-restore-browsing-session-backup), but the sessionstore.jsonlz4 file doesn't exist. I did a search for this file in my profile and it doesn't exist anywhere.

Does anyone have any ideas that may help?

Thanks in advance!

When I'm trying to go to a specific website, it doesn't connect with an error code "SEC_ERROR_UNKNOWN_ISSUER". I was able to press a button labeled "Accept the Risk and Continue" before, but the button seems to have disappeared?

When writing reviews in Google Maps when you click post pictures from your computer (allowing one to browse your computer to find pictures to post) the tab crashes.

This occurs on other websites as well where one would browse the computer to attach documents, photos or videos. Heck, it even happens with this site (selecting browse to post picture causes firefox to crash).

This did not occur prior to updating to 115.0

Windows 11 operating system

I was having trouble switching and logging out of Twitter so I thought I could just clear site cookies to make it work, but I weirdly discovered "about:preferences -> Manage Data -> Remove Selected / Remove All Shown" has no effect. i.e. after clearing, when I open up manage data again, they are still there. I did not try "Clear Data" above it because I was afraid of clearing out all my logins.

I reinstalled my computer several weeks ago and current profile was directly copied from my last machine, so this might be a possible cause? Could someone be so kind to help me get remove cookies and hopefully twitter back to work? Thank you in advance.

Hello! I have used Firefox on and off so I don't have a time frame of when this would have started exactly, but I have had some random completely black screens on both of my monitors dating back to at least 2-3 weeks ago that can only be fixed by powering down the entire PC. I've reinstalled my (NVIDIA) GPU drivers, rearranged display-port cables and just about anything before finally finding a fix, switching to edge. So far I've gone a week without black screening when with Firefox I'd get around 4 give or take a week (some days getting to 3 alone). I don't know what could cause it but I have noticed it only happens when first starting a video. Mostly YouTube but other video sites seem to have also caused it occasionally, I would just like to know what could be causing this, as I do prefer Firefox vastly and would like to switch back as soon as I can.

Will provide anything else as necessary!

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This was my fix for scrolling not working when hardware acceleration enabled. Upgraded this software product: X-Mouse Button Control (of Highresolution Enterprises) to latest release 2.20.5

I am unable to log into facebook after inputting my password and 2FA. disabling all addons does not help. It is stuck on the "This was me" screen in an infinite loop.

I have a list of clickable bookmarks that normally displays in the left side panel. It's currently missing. If I click on 'Other bookmarks' it appears to the right but is not pinned and doesn't seem pinnable. How do I get it back to displaying in the left side panel all the time as before? Clicking on 'Bookmarks Toolbar' or 'Bookmarks Menu' doesn't bring it up. I don't see any other options in the side panel nor do I see anything relevant under 'Bookmarks' in the top ribbon menu......? Many thanks and regards Ray

for new file types the option to save the default behaviour for future downloads is no longer avaliable for me. Also, the option to set in "Settings -> General -> Files and Applications" does not show any of the new file types.

I've tried re-installing firefox, as well as refreshing but still the same results.

For a few weeks now, Firefox has been often freezing a webpage for 5-10 seconds during browsing. It mostly happens when going back to the previous page, but also when clicking a link or doing a google search. For those 10 seconds, you can't do anything on the page; no clicking other links or selecting text.

I've already tried: - troubleshoot mode; it still happens when all extensions are turned off - turning on/off hardware acceleration - creating new places databes - updating to the newest version

What can i do to fix this?

I find myself going around in a circle. On my Windows machine, about:logins gives me an option to export data. But on my Macintosh, there is no such option (Firefox ver. 78.15.0esr [64-bit]). This is a very old MacBook Air but Firefox tells me that it (Firefox) is up-to-date.

On this page: Home > Support Forums > Firefox for iOS > exporting printing log in and passwords (https://support.mozilla.org/en-US/questions/1368085#question-reply, I am referred to "Export login data from Firefox" (https://support.mozilla.org/en-US/kb/export-login-data-firefox). But this write-up tells me there is the same export option that doesn't exist.

How do I export this data unencrypted? Any file format would be fine.

Many many thanks, Jeanne

/moved thread from Firefox for iOS (for iPhone/iPad) to Firefox section as your Mac uses macOS.

I'm having issues with the cursor when opening a new tab and I've tried a few different fixes and none are really working.

When I open a new tab the cursor goes immediately to the start of the homepage URL which is not helpful as if I type it just retains the URL after what I've typing(See Image). I've tried playing around with about:config to get the cursor to populate into the google search bar on the browser home screen but, it doesn't work.

I've also tried setting the new tab page to blank but, then sometimes it doesn't search google even though it says it should and says URL unrecognised(see the other images).

Why is this happening, I just want to be able to not have to manually delete the URL to search using the search bar and this seems like really basic functionality to me.

Hi. I have problem with firefox account addon. I acidenty remove it from the addon menu(that one on the right up corner in firefox) and i can't find it in addons setings. how can i add it again to addon menu?

When i go to google.com and enter search query the tab "hangs" for about 10 seconds before the next page starts to load Same issue on 2 separate machines (1 intel laptop, 1 amd pc) both on newly installed windows 11 pro

what i've tried: safe mode, disabling hardware acceleration, disabling antivirus (kaspersky, without any browser plugins or safe browsing) , but the issue persists

here's the video: https://youtu.be/qMY-38z_TC0

Hi, I have been searching a way to change the Firefox new tab background image keeping its vanilla design. I found I could use a userContent.css file in this post from a few years ago: [https://support.mozilla.org/en-US/que.../1271362] I have followed the instructions step by step but it doesn't currently work.