Whether I click on firefox icon or open it as a command in a terminal (firefox or firefox -P) it doesn’t open any window. There is no problem with any other program (including TOR and Palemoon).
The processes appear when I open the system activity manager (Ctrl + Esc). I rebooted a couple of times and nothing has changed. I have my computer upgraded regarding Firefox.
I only have one virtual desktop. This happened after I removed my SSD from my laptop and use it as an external drive with another computer (in which it used to work perfectly as an external drive, so this shouldn’t be relevant)
Mozilla Firefox 107.0
Manjaro Linux (with Plasma)
No addon has been installed recently (like, in months)
Same thing for one of my Manjaro PCs. Firefox sometimes opens, and sometimes not. When it doesn’t, three Firefox processes appear with ps -e | grep firefox. Killing them and trying to start Firefox again may work… or may not. It’s a totally random process, which makes the thing even stranger.
Didn’t try to uninstall manjaro-browser-settings, though.