Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

Firefox freezes entire system on first "complicated" web site visited

  • 22 freagra
  • 1 leis an bhfadhb seo
  • Freagra is déanaí ó jscher2000

more options

First, I use the word "complicated" because I think it is the first web site I visit that requires Flash, but I have not been able to prove that. I know it is not all web sites or simple web sites. I didn't want to offer bias in the question by claiming it is Flash, but that is my instinct.

Anyway, I have been working on this for about a month or so, The behavior is as follows. After a Windows reboot, I start Firefox, and after visiting a few websites, it freezes my entire system; no mouse, not ctrl+alt+del, nothing. Completely locked up. After about a minute or two, it unlocks, and I can use Firefox fine until after the next system reboot. Once I know a website is "complicated", ie, causes this problem, it will _always_ cause it if it is the first visited of the complicated class. However, after the initial freeze, I can visit any website, "complicated" or not, including the original one, fine.

So, say site A and site B cause this problem, but site C does not. I can visit site C and ones like it all I want, as soon as I hit A or B the first time, it freezes as above, then I can hit A B or C in any order all day fine after it unfreezes. Once I reboot, I am back to the same situation. It is 100% reproducible in this way.

What I have done/ what I have --

1) I have no extensions and I use the default theme 2) I have tried turning off graphics acceleration as suggested in another article 3) I have upgraded FF and Flash; FF version does not seem to matter 4) I have disabled every single plugin I have. I do note that the length of the freeze is much shorter when all plugins are disabled

None of the above have fixed the problem.

This started happening after I did a Windows update on Apr 7, 2016. I do Windows updates manually, but it is beyond my pay grade to uninstall each Window's update to attempt to find a causal relationship. It may be coincidence,

As I said, I suspect the problem sites require Flash, but I can't prove that. However, it is still a problem when Flash is disabled, as I said.

I run Windows 7 SP1 Home Premium fully updated, Malwarebytes premium AV, and FF 43.0.1. Since I have verified it is independent of FF version since at least 35, I have not checked for updates.

TIA for any help.

All Replies (2)

more options

I previously did the new profile thing, and the same thing happened.

I now believe it is a Windows bug. I started using IE for a problem site, and the problem did occur, just deeper into the site.

I thought it was fine with IE, as my test with FF was to simply visit the site, and it would happen. On IE it did not happen when I did the same thing. However, on IE, when clicking thru parts of the site, it did happen. I guess it is just that the 2 browsers ask Windows to deal with the fonts at different points.

Anyway, if I knew how to disable downloadable fonts on IE, I could conclusively prove that now, but I rarely use IE, so I don't know even if you can do that. Maybe I will look into this if I have some time.

I have never used Chrome on this system, but I believe it is installed. Maybe I will try that as well.

Bottom line, looks like a Windows and not FF bug after all. Again, thanks for your help.

more options
  1. 1
  2. 2