facebook messenger for firefox not working on latest firefox
This is a known issue and something Facebook is working on resolving.
why firefox is getting more and more heavy
its getting difficult to use even on i3 & i5 processors
Try disabling graphics hardware acceleration. Since this feature was added to Firefox, it has gradually improved, but there still are a few glitches.
You might need to restart Firefox in order for this to take effect, so save all work first (e.g., mail you are composing, online documents you're editing, etc.).
Then perform these steps:
Additionally, please check for updates for your graphics driver by following the steps mentioned in the following Knowledge base articles:
Did this fix your problems? Please report back to us!
techn4ll, your second question has nothing to do with your first. Don't disable hardware acceleration yet, but try to reset Firefox Refresh Firefox - reset add-ons and settings
Nem műkődik a firefox