Session Manager

5 ਤਾਰਿਆਂ ਵਿੱਚ 5 ਮਿਲੇ

ਵੱਲੋਂ Firefox user afa19a ਦਸੰ 5, 2017 ਤੇ · ਪਰਮਾਲਿੰਕ

Due to changes in the Firefox API, this add-on cannot be made compatible anymore for Firefox 57 and above. Best alternative is to reinstall Firefox 56 and to disable automatic updates.

https://www.wikihow.com/Downgrade-Firefox