Firefox Community Forum

I was having an odd issue the other day, that I now solved by comparing the settings on a working Firefox profile with mine.

For some reason, on one of my multiple Firefox profiles a list of web apps wasn't working. Among them were Discord, Miro Board, and Google Pay. I was suspecting that they all had the same issue, but didn't know what it was at that time.

The security settings were the obvious suspect (Ad-blockers, DNS, HTTPS enforcement etc.) because clearly something was being blocked, however nothing helped. The solution was in the Network settings. (See screenshot) I was using Manual proxy settings from the time I messed with I2P networks (or something similar).

I am not sure why having a proxy to localhost (127.0.0.1) on HTTP would somehow cause very specific major apps to stop working, while others keep working fine, but it happened to me anyway.

For anyone in a similar situation, with those particular apps not working, check your proxy settings.

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?

Firefox on my mac has been acting buggy lately. The last time I quit and reopened it, all of my windows and tabs were gone. there is no restore previous session available and the recently closed tabs and windows options are grayed out. How can I restore?

Windows 10; Firefox 141.0

According to the "View recent browsing across windows and devices" command:

"Window 2 is current" and there is "Window 1" (which contains recent work)

My question(s):

How can I switch from window 2 (current) to window 1 (recent work)? and/or How can I combine both windows?

Thank you. (For your information, I have had a partial stroke, and I am 79 years old.)

I have two Mac systems, a 2018 Intel Mac Mini, and an M1 2020 MacBook Pro, both running Sonoma 14.7.6. On the Mac Mini, Firefox opens to the familar "Recommended Stories". On the MacBook Pro Firefox opens to a long list of items I'm not the least bit interested in. How do I get the MacBook Pro back to nothing but the "Recommended Stories"? I don't want/need NHL, NFL, NBA,Television, MLB, Pro Soccer, Education, Food, Health, Parenting, etc., etc., etc.

When capturing a screenshot, I used to save to desktop as default (as set in settings). Now, regardless of the default folder set in settings, FF always downloads to "Downloads" folder. Very irritating. So now I click the "always ask" checkbox in settings. Is this a bug or a feature???

Hello, I want to travel my profile manually. And may automate it by my home computer which is a WebDAV server.

But I find a big folder "Roaming\Mozilla\Firefox\Profiles\fgrfgcgt.default-release\storage\default" It is 2.65G which is a bit big. I can exclude/delete it from my backup?

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.

`StartupWMClass=firefox-aurora` in `/usr/share/applications/firefox-devedition.desktop`, with actually `firefox-dev` for opened windows.

Version: Ubuntu 25.04, GNOME 48, firefox-devedition 143.0b2.

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.

After update to 141.0.3(64bit), sidebar comes with waste space, as pink area in attached image.

It didn't shows in these years I'm using FF, I want to remove it but keep sidebar exist, like it was before. Where can I adjust it ?

If it's needed to be exist, why not put it on top of Sidebar ?

I'm using Firefox 141.0 on OpenSuse Tumbleweed with KDE and Wayland. I'm using Firefox with two profiles: work and personal - which is (usually) awesome, until suddenly it's not.

Then, one or both profiles seem to become corrupted, and closing firefox, opening it, choosing either profile just hangs forever. My old tabs show up, but clicking on any tab, for any site, just hangs forever, and no page is ever loaded. Sometimes restarting helps, but sometimes not. Sometimes restarting 2 or 3 times and then suddenly it will work. But normally, I have to just delete all my profiles, and re-create them. Fortunately everything is synced with Firefox sync. Then everything will work wonderfully for a bit - although I have to re-login to everything.  :-(

Any ideas? This is a huge pain and productivity killer. I really love firefox, but this sucks.

One of if not my most favorite addon "context search" has recently been flagged as violating mozillas tos. I'm talking about this one: https://addons.mozilla.org/de/firefox/addon/contextsearch

I am unable to find further explanation or the exact reason for this decision, but I am able to activate it again at my own risk. Seeing as I don't know what the problem is, I am hesitant to do so. Could someone explain what the issue is and if it's safe to continue using that addon? Am I or is my personal information at risk, since I have been using the addon regularly?

I accidentally refreshed Firefox when I was having problems and didn't realize Refresh meant wiping everything clean. I found another thread about this, but it's 8 years old and things have changed. How do I use the "Old Firefox" folder on my desktop to restore all my bookmarks, history, etc.?