Ever tried to start Firefox while is it is running? Doesn’t work, you will get an error saying Firefox is already running. I have seen a trick over at CyberNet involving installing a portable version of Firefox, but that seems to be a lot of work. Plus, I already have several versions of Firefox installed. [...]
Archive for Monday, March 23, 2026
Tip: Run Multiple Firefox Profiles/Versions Simultaneously
Posted: Monday, March 23, 2026 by El Guru in Blogs, CyberNet, Firefox, Fx 1.5, Fx 2.0, Fx 3.0, Fx 3.5, Tips & Tweaks7
