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Firefox 40 fails to load pages after about one hour's use

  • 6 replies
  • 6 have this problem
  • 35 views
  • Last reply by Mikezot

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I've followed all 7 steps and added suggestions in https://support.mozilla.org/en-US/kb/troubleshoot-and-diagnose-firefox-problems but none fix the problem. FF40 works after rebooting computer, then won't load/refresh pages (get either the counter-clockwise gray spinning circle, or clockwise blue spinning circle). I've been trying every fix I can find on Firefox support pages, but nothing works -- including reinstalling, etc. Help!

I've followed all 7 steps and added suggestions in https://support.mozilla.org/en-US/kb/troubleshoot-and-diagnose-firefox-problems but none fix the problem. FF40 works after rebooting computer, then won't load/refresh pages (get either the counter-clockwise gray spinning circle, or clockwise blue spinning circle). I've been trying every fix I can find on Firefox support pages, but nothing works -- including reinstalling, etc. Help!

Modified by Mikezot

Chosen solution

P.S. If all OK, I'll very happily also click "Solved the problem"!

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If you reinstalled Firefox in a new program folder (renaming or deleting the old program folder) and tested in a clean new profile, and the problem remains, I wonder whether an external program such as a firewall or content filter might be blocking Firefox, or whether there is an issue with your connection, either direct through your ISP or using a VPN/Tor.

When Firefox becomes blocked or unable to load new pages, do other browsers still work normally for the same sites?

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Thanks for the prompt reply! But no, the firewall's off, antivirus (Avira) set to allow Firefox. The ISP's fine (my wife isn't experiencing any connection/loading problems with her laptop; we're connected through a router). I tested another browser (IE) once, and it failed to load (it worked when Firefox worked). Any other suggestions -- like, should I uninstall and try to find an earlier viersion of Firefox?

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There were a few reports like this for Firefox 36, but then I saw one on Firefox 37, but I didn't see any others until your report today. It's not possible for me to read everything, so I may have missed some, but I think it's an uncommon issue that isn't specific to Firefox 40.

If you find that other browsers have the same problem at the same time, it could be that a networking component of Windows "died" in memory or is misconfigured.

You could look into these Windows tools to see whether they help:

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Again I thank you for the fast reply and suggestions! Ran the File Checker, got "Windows Resource Protection did not find any integrity violations." Ran Microsoft's FixIt to reset TCP/IP and it said all was fixed. Told to re-boot, so I did; ran Firefox to get my Gmail, and page loaded OK; opened several new tabs and pages opened OK. Now I guess I'll have to wait until tomorrow to run Firefox for more than an hour, to see if it dramatically slows or fails to load pages? Will advise by mid-morning, if you're interested. Thank you again!

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Chosen Solution

P.S. If all OK, I'll very happily also click "Solved the problem"!

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Congratulations, jscher2000! Made it through the day with no problems.