Diễn đàn hỗ trợ Firefox

As of today, the wallpaper I'd set for my homepage/new tabs pages is gone and there's no way to choose a different one. Is this just me or or are other people having this problem?

Hello,

I have the below problem with Firefox 141.0!

Ad blocking on the website => https://satkurier.pl/ - how to disable it?

A message appears in Polish: Please disable ad blocking and refresh the page.

Thank you for help in advance,

Maciek

I don't know whether this happened after an update - there was one a few days ago, but I only realised this morning, after switching on the computer, that all my bookmarks are missing. The toolbar is there, empty, only reading "For quick access, place your bookmarks here on the bookmarks toolbar"... I wish! I tried to restore the bookmarks - but it seems there is no backup to restore at all. Then I tried to check my profiles, but there is only the one currently in use. Then I tried to move a tab to the bookmarks toolbar - and nothing happened. Then I began to panic: toolbar apart, we're speaking about years of bookmarks, most of them related to my research for my books... All the advice in the support seems to point towards profiles and backups, but, as I said, it's clearly not my case... Please, please, please: help!

The moment my version of Firefox auto-updated to 141.0.2 (64-bit), all of my extensions disabled. There is no option to re-enable them and no indicator of why they are disabled.

I found that switching to a new profile allows them to work, but of course that's not really an option; I have huge amounts of custom stuff in eg. Greasemonkey that I cannot afford to lose.

What can I do to preserve my extensions without losing things like Greasemonkey scripts? Again, deleting them and reinstalling them is not an option if it would lose their individual configurations.

I have Firefox 136.0.2 (up to date) on Win 11. I want to remove specific autofill items, NOT all autofill items. Web info says use Settings > Privacy & Security > Forms & Autofill BUT there is nothing for Forms and Autofill in my Firefox 136.0.2

Can anyone please help me find how to edit autofill in this version?

I used to have an image (dark, stormy sky) in my new tabs, that appeared as a background to my grid of websites (8 columns x 4 rows). Suddenly, I haven't seen it today - just noticed that it's just black. Can't seem to find where to access the different images. Would like the path to find it, or learn if it's no longer available or if I can make my own. Thanks.

Hi hi, I just did a complete reset to factory settings of my laptop (MSI), and a wipe of my hard drives too. After reinstalling Firefox (literally the first thing I did after setting up windows), it runs more slowly than before the reset (even for a basic search on Google/Duckduckgo). I am also unable to load any pages under the domain discussions.unity.com : the page loads forever, it's impossible to click on anything (even the hovering styles don't work), and I get a banner at the top of the screen that says "This page is slowing down Firefox. To speed up your browser, stop this page.". Also the memory usage for this page skyrockets (gone up to 4000MB??). I've disabled the 2 extensions I have (Dark Reader and Adblock Plus), restarted Firefox, restarted the computer, cleared the cache, even turned off the mozilla syncing, nothing worked. Any idea on what could be happening here? It's the first time in using Firefox for over 15 years that I've seen this happened.

Thank you for your time and attention <3

Roughly every 2 weeks I backup important files to a external hard drive.

One of the things I always backup is my Firefox profile. I have been doing this for years without any problems.

I 7zip my profile and copy it to the hard drive.

I tried to do this yesterday (July 25 2025), and was getting access denied messages for files in the profile. So I tried to simply copy the profile. Same thing access denied.

I cleared the history, used wise disk cleaner, rebooted my machine and tried again. Same thing access denied when trying to backup or copy the profile.

I am assuming that this is happening since 141 because I updated Firefox since the last time I backed up my profile, and never had a problem previously.

Could anyone have an idea what the problem is? Thank you for your time.

I am running an iMac that is about eight years old.This afternoon my Firefox browser was taken over by a "warning" from "MacOS security center" that I should go to THEIR macOS support site to get my system unfrozen. The number they give is 1-877-xxx-xxxx. I cannot get this intruder to go away, even by restarting the computer.

I am on Linux Mint 21.2, and I just updated Firefox (141.0). Now, the bookmarks bar, toolbar, and the tabs (everything above the displayed page), as well as the menu, bookmarks menu, and sidebar, are in light mode even though I have dark mode set (They were dark before the update). I tried playing with the Dark Mode settings to no avail. My system is set to dark mode in general. Are others experiencing this? Is there some sort of fix?

How do I automatically open all current Firefox tabs from one laptop onto a new computer? I just set-up Firefox app on a new laptop computer, and want to automatically reopen all the tabs that I have open on the old computer onto the new one?

How do I do this without going individual tab by tab?

Thank you for your help.