When I start Firefox (Or Librewolf) they start lagging a lot in start but with time they start responding smoothly (in like 3to5 minutes).What could be problem? How to fix that?
Edit : Do not know how but it is working now. Edit2 : Experiencing Same issue again 😞 !!
You could try Menu -> Help -> Troubleshoot Mode. That will restart Firefox without extensions and such - if the problem then disappears, it’s probably caused by one of them.