Firefox Community Forum

Since I upgraded from FF128-esr to FF140-esr I always get the "Firefox is being updated by another instance" This is really driving me crazy, as I checked / did / .... everything (and even more) I found on the internet related to that.

Nothing helps !

Creating and using a new default profile didn't help

Finally I ended up uninstalling FF completely (making sure no -zero- leftovers remained in ProgramFiles, AppData a.s.o.), and reinstalled FF140.7.0-esr freshly. After installation I started FF immediately with the created default profile (only existing one) --> SAME THING : "Firefox is being updated by another instance"

And this is really a FF140 thing, when I go back to FF128, on the same computer, same profiles, ...., the problem is gone.

I would like to know in detail what checks are really done by FF to decide to give that "Firefox is being updated by another instance"

Up until version 141, the difference between 32 bit and 64 bit Firefox installers wasn't noteworthy, though it has clearly been slowly increasing overtime. However, starting from version 141, the difference between them doubled from 5MB to 10MB, meaning a nearly 13.5% larger installer for the 64bit version than the 32bit one.

Why is that? What happened? Are there are feature differences that would warranty such a large gulf in their installer sizes? It's the AI isn't it? 32bit users were spared the bloat of the AI.

I also see that starting from 115.16 Firefox suggests users that aren't on Windows 7-8.1 or MacOS 10.12-10.14 should use other versions. Given both x86 and Windows' immense reputation surrounding backwards compatibility, is this really a concern? Is there REALLY something supported by Windows 7-8.1 that wouldn't function on 10?

After typing in alaskaair.com account info... I get this... It use to work on firefox, doesn't anymore after I set up this as a profile..

The server at auth0.alaskaair.com sent back an error: 406 Not Acceptable

However, works on edge browser.

Hello I just filled out a pdf and the font or writing came out blue I want it in black is there some where in Firefox i can get it in black w font or writing please Advise thank you

I would like to see someone come up with a templated browser (or page) that's specific to Facebook which would include the now removed feature of the list of contacts they used to have on their feed page. At one time this list used to be included on the wall as well. I would use that list when viewing FB to show me not only who was currently online, but who was most likely viewing the content I posted. Sadly, to the frustration of many Facebook has changed this feature to a collapseable menu represented with an icon... and at the top of the list when brought up, is a link to the Meta AI (a feature I would also like to block) which I've found can and will chat with a user, although not in a manner I consider satisfactory.

Hello all,

I can see that I can access hidden tabs from firefox menu > History > Hidden Tabs. I have non hidden tabs in my permanent session that is saved/reload whenever I close/open Firefox.

I searched in the support section of Mozilla and found that I can use extensions to hide tabs and find these hidden tabs through History > Hidden Tabs to access or simply unhide any of those tabs.

My question is what would be the benefit of hiding any tab? For privacy? If so, is hiding tabs really efficient to protect tabs content and/or browsing history?

I could see that some extensions offer to protect hidden tabs with a password and even automatically unload tabs upon hiding them.

Thanks in advance to shed some light on this hiding feature.

I just went to The IRS and filled out a pdf form to change my address and the print or font was in blue text I Want it it to always be in Black font text please let me know how to do it. I have font contrast and blacken as extensions. Do I need to do t in my windows 10 computer

When I try to set up the new built-in VPN setting it gets stuck in a loop:

I click the "get started" which then opens another tab where it gets me to confirm my account

Once I do that it says it will automatically open the VPN

When it does so the VPN window is the same one as before with just the "get started" button and no other options.

If I click on that it then opens another new tab and does the exact same thing in an unending loop

what it says on the tin. went data purging with ol reliable WinDirStat and found this absolute behemoth of a file in the profiles directory for firefox. its especially weird considering the entire Firefox directory itself is only 1.5GB with this menace taking 1.3 of it. I cant imagine that bookmarks, search history, passwords, the works takes up any more than about 300mb. so im wondering if im just stuck in the early days of data or if the file really is just that girthy.

What have you done to the Settings feature? It's a mess with those weird little icons on the side. I am just trying to figure out why my tabs keep closing on me. I can have about six tabs open with intention of going back to them, and then..poof.. they disappear. I went into Settings to see what I might have changed but I can't figure this out.

Hope you can help. thanks.

I want to dowload V150. The current Firefox version sucks. If you don't let me download an earlier version then I will stop using Firefox because the latest version is [edited]!

How do I stop this page from coming up several times a day. I have already set FireFox as my default browser, several times, but to no avail. I've careful followed your instructions. I dislike MS and have used FF for years. If this doesn't stop, I'll search for another browser that hopefully behave. I have set it on 4 computers, 2 Win 10, 2 Win 11.

By the way, the computers show FireFox twice, but only one actual installation.

Please do better!