This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Wannan tattunawa ta zama daɗaɗɗiya. Yi sabuwar tambaya idan ka na bukatar taimako.

Firefox 4.0.1 crashes with: nsHtml5TreeBuilder::pop()

  • 2 amsoshi
  • 15 sa na da wannan matsala
  • 1 view
  • Amsa ta ƙarshe daga killerog

more options

Hello,

Since a few minutes I can't use firefox anymore, every time I try to open a page, I get a crash report. Even in safe mode.

The only page I seem to be able to visit is about:home, after that it crashes.

Could it be something with the 4.0.1 that I installed yesterday?

Hope somebody knows,

killerog.

Hello, Since a few minutes I can't use firefox anymore, every time I try to open a page, I get a crash report. Even in safe mode. The only page I seem to be able to visit is about:home, after that it crashes. Could it be something with the 4.0.1 that I installed yesterday? Hope somebody knows, killerog.

Mafitar da aka zaɓa

Could you try temporarily disabling the HTML5 parser?

From your home page:

(1) Type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the filter box, type or paste html5 and pause while the list is filtered

(3) Double-click html5.parser.enable to toggle it to false.

If you try to browse normally, does this head off the crash?

Karanta wannan amsa a matsayinta 👍 0

All Replies (2)

more options

Zaɓi Mafita

Could you try temporarily disabling the HTML5 parser?

From your home page:

(1) Type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the filter box, type or paste html5 and pause while the list is filtered

(3) Double-click html5.parser.enable to toggle it to false.

If you try to browse normally, does this head off the crash?

more options

Thanks, this fixed it for now.

I'll create a bug report so they can look into it. Might get hard in the future, surfing without html5 :)