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"

All of my history except of today's has disappeared. I did not erase my history, and really need it back. I did try to remove a couple of sites from my Most Visited, as Firefox was saving all sorts of sites I don't really visit often. In addition, I am being asked to sign in with my password at every site I go to where as before I was automatically allowed to enter, as all my passwords are saved. What happened - and how can I get back to normal?

Contributor note: bookmarks are also missing (/questions/1578816).

I see many complaints about this new version v 149 for the Mac. The most outrageous one is that you can no longer drag links from a browser page (try BBC) to an email or a doc. You have to copy the link then it won't turn blue and only when received will it show up as a link. Like many others after 30 years use preferred over Safari and others I am seriously losing patience with Firefox. On the very day you announce split screen for Ff windows - you disable a vital feature that has worked for years causing me to waste so far 60 minutes of my hard pressed work time. Maybe this will be corrected in the next upgrade. But I am now intending to avoid all Firefox upgrades for 6 months after being offered. I doubt anyone on this forum will come back on this but my set-up is Mac OS Monterey - and Firefox v 148 worked perfectly before today. I hesitate to try and install the previous version because I am not used to doing such tech moves. Perhaps someone in the Mozilla head office congratulating themselves on the marvellous new upgrade will come across this but I doubt it

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.

I used to ignore these, but today I clicked through to see the extended code and it looks like the unauthorization was to log into my bank account at CHASE, which is concerning. I have a separate login, not an automatic one. I someone trying to get into my bank account?

Hi Community, I wanted to send a link to my desktop pc and saw that I'm not longer logged in. So I wanted to login again with my same acount and the same password I always used. The login site of Firefox sync shows: Password is invalid, but I never changed my password!

Now on my desktop pc (still logged in) I can't set a new password because there aswell my old password says 'Password is invalid'. Whar happend? Also to set a recovery key I need the old password aswell.

What to do? Greetings Ben

I have been told to disable my ad-blocker by some commercial web sites and I understand that. But I am also not seeing charts and other non-ad items on web sites such as this one: https://www.medscape.com/viewarticle/alcohols-health-myth-over-how-tell-patients-2026a1000map?ecd=wnl_tp10_daily_260703_MSCPEDIT_etid8475291&uac=146695DK&impID=8475291. I don't want to change my default browser but this is a recent development that seems to be impairing my viewing of pertinent items placed on legitimate web sites. Could you please tell me how to adjust my browser settings to stop this from happening? Thank you! Best regards, Bill Strike

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

Hi, I had to reinstall my windows where I thought my Firefox would sync up upon reinstallation. However, nothing would sync up and the best I could do myself was to import pretty out-of-date Chrome data. When I to my firefox account and scroll to connected services I see my last PC name with its firefox login. Is there any way to recover that data and import to my current device? I read you kept sync data as encrypted data on your Mozilla servers, so I hope that's a viable solution.

I run normal firefox on linux. Fully up-to-date. Every time I quit the app, it reverts to a version of my profile from a month ago, and loads all the tabs I had open then, and then receives all the tabs that I sent to the device in the interim (~1 month). As I speak, it just caught the 60 or 70 tabs in this window.

I tried changing the name of my profile folder to randomstring.defaultOLD and changed one of the backups to randomstring.default. This didn't change the behavior. I'm still stuck in the loop. I saved my tabs with onetab, because firefox isn't remembering my session anymore. I thought it was something to do with updates, like it only loses its mind upon updates, but that's not true. It thinks it's updating firefox EVERY TIME, because the one time it's loading to 1 month ago it was updating, but I'm 100% sure there are no updates to firefox in my linux. It's just hallucinating.

The articles on restoring from backup are outdated. They say to use an html file. There is no html file. It's just folders for profiles, not html files. HELP!

I have an insta 360 webcam with Virtual Camera enabled. Is there a setting for Firefox where I can select from a list of available webcams (cameras)? I am suspecting it is trying to use either the integrated laptop camera or the Insta360 without using the Virtual software.

Thanks in advance for your help

Why doesn´t the new checklist widget (that apperas on a new tab) sync between my different computers?? As it is now, it is totaly useless. If i create a checklist on my homecomputer (logged in with my firefox account) it does not show up on my work computer (also logged in with my firefix account). Eveveything else is syncing fine, but not the widgets...

The "Post" button is off screen on the share popup when I try to share a post in a Facebook group to another group. The problem has been getting worse. Usually I can see a slim piece of the top of the button, but today it disappeared completely. The only way to make it visible is to press Ctrl -. Then select Zoom > Actual size from the menu when I'm finished.

Around July 2nd I opened FireFox to find that the text on whatever screen I was on is spaced in an ineligible form. It seems to be the correct spelling, just jumbled together. I've tried adjusting the fonts, browser acceleration, to no avail. It's becoming difficult to read, and it has only been affecting the desktop browser. It works just fine on my Mac and phone, but not my windows computer. It is the only application that does this. I've updated my drivers and all.

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.

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

Linux Mint OS Firefox 152.0.4 Firefox does not recognize embedded iframes in local app page, anymore! I have a local docker app that can be accessed and functions properly,except for one thing The app has pages that have an iframe embedded within each page The iframe USED to display the correct iframe data for the page displayed NOW when an app page is accessed . everything on the page displays as normal and in the correct physical location,, EXCEPT for the iframe !!! The iframe contains a LOCAL url The page "looks" as if there is no iframe to be acessed ANY ideas??? Thanks, Anne

Hi I very often have problems playing videos on X/Twitter but not all of the time. Some videos just won't play but others do no problem. It's very frequent though and i have searched for a solution to this and can't find one.