Robert P. J. Day wrote on 2014-09-24 10:44 (GMT-0400):
i am at my wit's end with firefox on my fedora rawhide system -- to say it's nad-grindingly slow would be charitable. just now, i tried clicking on another tab ... some 30 seconds later, i am still waiting for the tab to change, oh, wait, there it is.
watching any sort of youtube video is excruciating ... while audio is typically, i will frequently get *maybe* one frame change a second, i kid you not. i frequently get javascripts that are not responding, and i'm asked whether i want to wait for them.
is there *something* i can do to debug this? what firefox configuration settings should i be looking at? i'm willing to try anything because, at this point, firefox is utterly unusable. even something as simple as scrolling in a window is painfully slow.
Things to try:
1-virgin profile
2-uninstall Flash (there is no "current" Flash version for Linux)
3-try a Mozilla.org binary. They are profile compatible, plug & play.
4-safe mode (disabled extensions)
5-disable extensions one at a time
6-SeaMonkey. Same browser engine, different UI.