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"

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

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.

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!

when i open the browser today i noticed that my wallpaper which i've set isn't showing. i tried restarting and refreshing the browser but it didn't work. so i tried to change my wallpaper or see it again by clicking customize, but i only saw that i have allowed my wallpaper, but no picture or another option was shown.

Beyond My Experience. As I Bring up Firefox Upper Right Flag Yo Update Firefox. IF I DISMISS, TROUBLE STARTS. FOR NO REASON ACCUWEATHR APPEARS. IF I X Firefox Shuts Down. Instead to Remain Online, I have to Use a Bookmark and Continue. Not in My Bookmarks, How Can I Stop That Annoyance Pop Up. Thanks, Joe

After updating Firefox to a newer version, some websites that previously worked on the older version started displaying **"Page Not Secure"** and **"Page Expired"** errors, preventing them from loading correctly.

I wish to add an exception to an address which I host locally. I've explored many options which didn't work such as: Adding HTTPS-Only Exception Disabling certain security features

See the subject. I've been seeing delays in launching for several months. I've run several windows defender malware checks (full and the one where it runs outside of anything brought up). I've reset firefox. I did all this also because I was seeing random ads from a news site from what they were trying to get me to do was install macafee (but it's malware). While I'm not seeing those ads now and I'm suspicious they can from the news site vs. my browser, I'm very aware of anything trying to capture screen scrapes. I'm even considering changing all my passwords as I'm not sure if anything was captured. This morning, firefox upon launch took a long time. Then it said installing updates. My desktop flashed and firefox launched. I have not installed anything or any addons, extensions, etc. So either this was firefox doing an update it needed or it's something else. I'm on windows 10.

For some reason the program has stopped saving my passwords, all of my bookmarks are still listed but they are disabled. No autofill. When I manually put in a username and password the program drop down asks me if I want to save it, I reply yes, but it doesn't happen.

i really need this colour switch pls. my firefox kept crashing with no explanation (maybe some extension i had, then deleted when the crashes began) so i had to reset the whole thing. now the appearance has changed. i had put back my background picture, witch was fine with me, but the text was black instead of white like it used to. and it makes me use firefox less. i think its something to do with the website contrast but I'm not sure.

For quite some while now, when I pull up my site history, it doesn't matter what I search, the search returns no matches found.

Yesterday, I visited a site. Today, I pulled up the history (^H) and then proceed to search for a word I knew was in the title of the page because I had printed it and had it in front of me. It was not found. I then searched manually through my history and found the page.

See attached screenshots.

1. Searching for the word "corn" and not being found in the history
2. Manual search shows the content exists with the word "corn"

Windows 10 Firefox 152.0.4

Issues with redirect. A group I am a member of uses Constant Contact. An email is sent with a link to a report. Receive this error:

Server Not Found

Firefox can’t connect to the server at deuaxb4ab.cc.rs6.net. What can you do about it?

This worked last week.

Firefox 152.0.4. Win10

When I add sites for exceptions, why isn't this carried with my Firefox account and it shows up in every instance of Firefox when i am signed in? It is a nuisance to keep re-adding them everywhere. Also, when Firefox updates, why do I have to re=enter what I already done. It is a pain.

When using a tab inside a collapsed tab group, if "open link in new tab" option is used, the tab group expands unprompted. As a result I have to keep collapsing the tab group again and again and again, slowing down the browsing experience. Is there a fix for it?

I have Mozilla VPN installed on my computer, but not in Firefox. Recently, whenever I turn the VPN on or off, the tab I have open in Firefox reloads. This usually doesn't matter, but sometimes it's really annoying, like when I'm really deep in an infinite scroll website. I want to turn it off, but I tried turning accessibility.blockautorefresh on in about:config, and it still does it. I don't want to blindly mess with settings when I don't know what they do. Does anyone know if there's a setting/group of settings I can use to stop Firefox from reloading on network change?