See if clearing the browser cache helps:- press Ctrl-Shift-Delete (Mac: Cmd-Shift-Delete)- set 'Time range...' to 'Everything'- untick all items except 'Temporary cached files and pages'- clear, then restart FF
Go to about:config via the address bar and make sure layers.acceleration.disabled is true and layers.acceleration.force-enabled is false.> Firefox still manages/managed incidentally to hog more than 1GB of GPU-RAMHow exactly are you determining that?...