i also use arch and firefox/mullvad browser do take a lot longer to launch than normal. my problem could be some dependency missing (ive already got problems with video codecs i have no idea how to fix) or a broken swap partition. So, does reinstalling firefox help? and do you have a swap part? if yes, how big did yoy make it?
40 seconds? Iβve never experienced that with Firefox at all. Youβre either being hyperbolic or have an ancient computer. I have a Samsung Windows 10 machine from 2015 that opens Firefox just as quickly as it opens Chrome.
40 seconds startup?! What? Should open within like 2-3 Seconds. 5 if your system RAM is maxing out.
Abou locally developed extensions, you will need to follow the specific developer directions on that. But if you code, you should've figured that out already. If not, you tried doing shady things, which Firefox rightfully blocked.
I also experienced this, and immediately after a reinstall, Firefox decided that it didn't like to be reinstalled and bricked my OS. I had to completely reinstall it because the boot section was nowhere to be found, and barely any data was salvageable.
So, even if Chrome is bad, I prefer to use Ungoogled Chromium or other chromium forks that don't nuke my computer than using a browser that has consistently given me extreme problems.