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Firefox is unbearably slow after updating to version 27

After updating to Firefox 27 all webpages take a few dozen seconds to several minutes to load. When loading a webpage Firefox's status displays "connecting" and the CPU … (read more)

After updating to Firefox 27 all webpages take a few dozen seconds to several minutes to load. When loading a webpage Firefox's status displays "connecting" and the CPU gets maxed out with 95 to 100% of its cycles taking by Firefox.

The computer is older so it is a little slow but Internet Explorer 8 has no trouble opening the webpages and neither do other computers on the LAN so it is not a network issue. I have tried restarting Firefox, disabling add-ons, deleting add-ons, disabling hardware acceleration, restarting the computer, and reinstalling Firefox after wiping every trace of it and its user data from the hard drive and registry.

CPU: AMD Athlon 2800+ 2.08GHz RAM: 1GB OS: Windows XP Home Edition Service Pack 3 32bit


Comments by a forum moderator.
(Modified April 30, 2014 12:11:58 PM BST by John99 ) ~J99
Rather a long thread so I will add some comments here where easily seen.

 Modified June 18, 2014 6:08:41 AM PDT by John99

Asked by hj21c1yg 6 years ago

Last reply by petef 5 years ago

  • Archived

Firefox crashes

I have spent the last 12 hours trying to fix this! Firefox no longer works on my MAC - see crash report below I cannot get it to run in SAFE MODE I have installed and rei… (read more)

I have spent the last 12 hours trying to fix this! Firefox no longer works on my MAC - see crash report below I cannot get it to run in SAFE MODE I have installed and reinstalled at least 10 times, including earlier versions I do know it's running 100% of my CPU


bplist00”]ForceQuitDateTPathTDate3A∫ÉÜflWÇ_d/Users/rlthornhill/Library/Logs/DiagnosticReports/firefox_2014-03-31-122818_The-Dagobah-System.crash3A∏È˘9+û"'0ó†

Asked by PetalumaRiverRat 5 years ago

Last reply by guigs 5 years ago