Hi,

I had in the last days. I use Firefox all the time and probably because of the cached files or something else it started to lag when I was browsing in more than 4-5 tabs.
I found good solution solving this problem.

Win 7 solution
1. Clear the whole cache of your browser
2. Go to C:\Users\{USERNAME}\AppData\Roaming\Mozilla\FireFox\Profiles
3. Find the folder of your default profile.
4. Delete all sessiostore*.js files

Restart the browser and then everything should be fine.

Hope this will help you. I made it and now it’s working a few times faster .
P.S. I can’t imagine if I had to use Chrome LOL