In recent weeks Firefox has been impossibly slow, so I installed the latest, 55.0.3 64-bit, and the same problems persist:
• typing text anywhere — in email, in the address window, in this forum posting — frequently (but not always) is so slow it takes up to ten seconds for the typed letters to appear
• dragging objects within a web page is herky-jerky and slow, e.g. dragged words at kwunk.com/170906-bf (dragging is perfectly smooth and fast in IE, Chrome, Opera, Vivaldi)\
• dragging the Firefox window around is also herky-jerky and sometimes so slow that it takes several seconds for the dragging to be effected . . other times it's perfectly normal
All of these things will occur within a period of time, usually several minutes, the all of a sudden everything will be back to normal. Weird
I thought that installing the latest version would fix things, but no luck.
I've tried to find info on this problem at http://forums.mozillazine.org/, but I could only find comments from several years ago.
Anybody else have this problem?