I'm almost sorry to ask this, but does anyone have experience with Firefox on Linux taking a long time to open? I'm running Pop!_OS on a fairly modern machine. All other programs open pretty quickly, but Firefox seems to drag its feet on startup. Once it's open it's great, no problems with speed.
I have tried disabling extensions (ublock origin, sponsorblock, decentraleyes, i still don't care about cookies) and I have tried setting my default profile as one without any custom user.js (I have a profile with Arkenfox and one with Betterfox's user.js). Nothing I have done so far has seemed to make any difference, but Help->Troubleshoot Mode allows Firefox to open quickly, so there must be something that I can disable that is causing the issue... Any ideas? Thanks.
Edit: Seems like swapping to the flatpak version made things much faster. The Pop!_OS .deb version must be snap like you all said :) Thanks everyone!
Do you know if its installed through snap? I've heard that can have issues starting up quickly. You can try the flatpak or the deb package.
Just checked, I'm using the deb package.
Okay, well switching to flatpak solved it. Thanks!
I've always wondered why snap is so slow, I feel like launching a docker container with firefox in it would still be faster than snap.
Snap is basically a docker container with some frills.
If OP is on Ubuntu, it's a snap.
I personally don't have any issues launching Firefox, which is installed as a regular app and not a snap/flatpak. It's basically instant for me, maybe 2-3s if I have a ton of tabs or something. I haven't tried the flatpak, but I'd be surprised if it adds more than a second or so, because other flatpak apps launch reasonably fast.