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When I was running a game and updated my graphics card driver, Firefox was running in the background. My PC went completely black and became unresponsive, so I had to force‑restart the computer.

After rebooting, Firefox reverted to a brand‑new fresh‑install state. All my browser settings, login status, local profiles, browsing sessions, hundreds of open tabs and my categorized tab groups disappeared, only the welcome startup guide showed up.

I logged into my Mozilla account on my Android Firefox device. Some browsing history was synced back. However, synced history cannot restore the original tab session back‑forward page history, nor my manually sorted tab groups. All browser preferences, theme and language settings are also lost.

I originally had 4 separate local Firefox profiles on this Windows computer, isolated from each other for different work purposes. Only one profile was logged‑in to my Mozilla account and could partially sync data. The other three local profiles are completely gone. Those extra local profiles were NOT signed into any Mozilla account and were never synced to cloud storage.

In my Mozilla account’s connected devices list, there are two entries both belonging to this same computer: “MARSHAKK” and “Firefox by Administrator on MARSHAKK”, which correspond to my Firefox instance before and after the crash.

I cannot understand the community help articles about session recovery, and I’m unable to locate or restore my old local Firefox profiles and lost tab sessions by myself. Please give me assistance.

Issue occurred on September 6:When I was running a game and updated my graphics card driver, Firefox was running in the background. My PC went completely black and became unresponsive, so I had to force‑restart the computer.

After rebooting, Firefox reverted to a brand‑new fresh‑install state. All my browser settings, login status, local profiles, browsing sessions, hundreds of open tabs and my categorized tab groups disappeared, only the welcome startup guide showed up.

I logged into my Mozilla account on my Android Firefox device. Some browsing history was synced back. However, synced history cannot restore the original tab session back‑forward page history, nor my manually sorted tab groups. All browser preferences, theme and language settings are also lost.

I originally had 4 separate local Firefox profiles on this Windows computer, isolated from each other for different work purposes. Only one profile was logged‑in to my Mozilla account and could partially sync data. The other three local profiles are completely gone. Those extra local profiles were NOT signed into any Mozilla account and were never synced to cloud storage.

In my Mozilla account’s connected devices list, there are two entries both belonging to this same computer: “MARSHAKK” and “Firefox by Administrator on MARSHAKK”, which correspond to my Firefox instance before and after the crash.

I cannot understand the community help articles about session recovery, and I’m unable to locate or restore my old local Firefox profiles and lost tab sessions by myself. Please give me assistance.

Okay, I do save a lot of bookmarks. But I'm not sure how they would ever add up to more than a gigabyte of user data. I already cleared my cache, and there's still 1.37 GB of "user data". The Firefox app doesn't seem to have a way to display a menu selection where I can get it reveal the contents of my "user data", or UD. Interestingly, my UD on my other devices is also gigabytes in size, across devices newer and older devices, and even desktop on Mac OS.

I am loath to delete my UD on my devices without knowing exactly what I'm erasing. And in the app, regarding the bookmark function itself, it seems that all bookmarks are stored locally on the device that they are created on. It's nice that with the sync function in the desktop app that all my bookmarks across all my devices can be ACCESSED using my desktop browser. But to SAVE, those non-local bookmarks would need to be manually opened in my desktop Firefox browser and then re-bookmarked to actually be backed up. Currently, as it stands, if I lose the device or clear the UD, I lose the bookmarks. I verified this situation using my desktop Firefox browser, which shows the root directory of bookmarks which are not locally stored in the desktop Firefox browser as "_other". And, interestingly, even with sync on across all my devices, I still can only see locally stored bookmarks on my cell phone devices; I can only see all synced bookmarks using my desktop Firefox browser.

So what I need to know is, does there exist a good way to quickly save bookmarks from, say, cell phone devices to a desktop version of Firefox, with hard drive space. And, I would also like to know how to access all the data in the UD part of the mobile device and desktop apps, so that I know what data the app is saving, and therefore, what I want to keep and what I want to delete.

我是yyc2.dpdns.org的管理员 我的域名及其子域（例如https://chat1.yyc2.dqdns.org）在使用Firefox访问时被识别为欺诈网站，其他浏览器暂时还可以访问。 我已经向google安全浏览团队发了表单，但那看起来非常不靠谱。 恳请各位帮帮我，谢谢！

Please add a bookmark setting to remove the counter in bookmark folders. Better still just remove it all together. It has made bookmarks harder to find and doubles the screen I have stuck to version 143.0 to avoid this

After the most recent Thunderbird app update from Google play, the Thunderbird app crashes instantly and constantly on start up. I did restart, uninstall, reinstall, OS update, clear cache, smart clean and still the Thunderbird app crashes instantly on start up. The screen will flash a few times as the app attempts to start. But instantly a window pops up saying the app has unfortunately shutdown. I am at witts end. I have been using Thunderbird for years. Never had this happen before. Anyone have any ideas? Google suggests getting hold of Mozilla support because this is becoming an on going issue. Please help.

Initial performance is good, but over time especially when tabs are opened and closed frequently responsiveness to user input (e.g. tab switching, opening/closing tabs, response to hyperlinks) becomes very slow. After force quitting and restarting, performance is good again for some time. I exclusively use private tabs.

Bonjour en voulant aller sur un site connu et auxquels je vais j'ai eut ce message je n'ai rien modifié sur mon ordi d’où cela viens t-il et surtout comment y remédier. Merci "Pourquoi ce blocage ? Quelque chose dans le comportement du navigateur nous a intrigué.

Diverses possibilités:

   vous surfez et cliquez à une vitesse surhumaine
   quelque chose bloque le fonctionnement de javascript sur votre ordinateur
   un robot est sur le même réseau  que vous

Des difficultés pour accéder au site ?"

Hello Facebook Team,

My account was disabled on September 25, 2025. I believe this action may have been a mistake because I have always tried to follow Facebook’s Community Standards.

This account is very important to me as I have been using it since 2014 to connect with my friends, family, and community.

I kindly request that you review my account again. I am happy to provide any identification documents needed to verify my identity.

Thank you for your time and support.

Sincerely, (Soe Kyaw Thu Soe)

Actually, I need to add sinhala language to the Firfox transalator. There isn't sinhalese to translate any kind of website or other article etc. So if i can add sinhala language to the firfox translator it can be verry helped full and usefull for me. So i kindly inform you to send me any meterial or technical information to fix that.

Thank you.

sincerely, Eranga Samarakoon.

Firefox guidance says the reader view button should be in the address bar. This seems to have been replaced with an ai feature that is not a replacement for reader. No other menu seems to have a reader view option either. Please help as this feature was critical for making webpages accessible.