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"

Firefox was updated. I was Hacked. Now I cannot log into my email Provider. Firefox is my default browser. How do I access my email provider via firefox browser now?

All the application windows I had opened on my Mac, closed due to a security related update. Now Firefox isn't showing any of my tab groups from before and also there's a weird behavior when you click on the Firefox icon, it opens a new window that is small, but when you do file > new window it also opens a window but full sized. I tried creating a new tab group and the second approach of doing file > new window is showing the tab group in the tab group menu, but the window created by doubling clicking the icon doesn't show it.

"WebGL error Недостаточно оперативной памяти для запуска клиента. Пожалуйста, скачайте наш Desktop-клиент для возможности играть дальше." Здравствуйте. Испробовал все варианты, которые есть в интернете. Ничего не помогает. На других браузерах этой ошибки нет для этой игры. Оперативной памяти 32 Гб.

j'ai restaure w11 en supprimant tous les fichiers, puis mise a jour mon compte mozilla qui avait 2comptes 1 perso et 1 pro, pour mettre a jour a 1 compte par session pro et perso et éviter confusions ,j'ai certainement fait une mauvaise manip et je ne retrouve pas mes marques pages et mon organisation . puis je retrouver ces marques pages ???? en me reconnectant a mon compte initial et resynchroniser pour info le mot de passe du COMPTE PRINCIPAL MOZILLA a été changé car les 2 dossiers qu'il incluait avaient la même adresse mail . pour faire simple :

COMPTE PRINCIPAL MOZILLA  : cccc adresse gmail mdp : xxxx123

dessous  : compte PRO  : cccc adresse gmail mdp : xxxx123

dessous  : compte perso  : JJJJ adresse gmail

je pense avoir tt essaye , vu que j'ai restaure w11 et supprime les fichiers je n'ai plus l'anteriorité , le fait que j'ai change le mot de passe du COMPTE PRICIPAL DE MOZILLA a du ecraser les donnes . qu'en pensez vous avec mes remarciements

Recently, after I did a practically factory reset (using the restore from other device option once the system restart finished) and re-installing many apps, such as Firefox, despite my computer getting faster my Firefox now lags whenever I have Youtube running in the background (audio or picture-in-picture, both lag) at least during gaming. I have tried disabling GPU acceleration, with no luck, and have tried utilising picture-in-picture, which also failed. I'd appreciate any help on solving this.

I am using the latest version of Firefox, and the scroll bar only appears when I place my mouse over it. Then I have to use arrow keys to scroll up and down the page, and it disappears very quickly. Once the scroll bar disappears not even the arrow keys work. Is there a way to turn the scroll bar on so that it is always on and does not disappear? I need to be able to scroll with both the mouse and the arrow keys any time I want to without moving the mouse over to the scroll bar. The disappearing scroll bar is incredibly annoying, and I cannot find a category for it anywhere in the settings menu.