Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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

i just upgraded to firefox 17 and when i navigate facebook, i get javascript error messages.

  • 3 replies
  • 34 have this problem
  • 3 views
  • Last reply by wumzels2

more options

i keep getting these pop up error messages whenever i navigate facebook or any other site online after i upgraded to firefox 17. the message says: javascript application..........ERROR: syntax error. i have never gotten this message before, and need to know what to do. otherwise, i will have to go back to a previous firefox. please respond. thank you. regina watkins

i keep getting these pop up error messages whenever i navigate facebook or any other site online after i upgraded to firefox 17. the message says: javascript application..........ERROR: syntax error. i have never gotten this message before, and need to know what to do. otherwise, i will have to go back to a previous firefox. please respond. thank you. regina watkins

All Replies (3)

more options

This issue is possibly caused by the Social Fixer extension.

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do not click the Reset button on the Safe mode start window or otherwise make changes.
more options

hello, the error message is usually caused by the social fixer addon & can be resolved by updating to the latest version available at http://socialfixer.com/blog/category/releasenotes/

more options

wow, madperson, that really helps.....i have been battling with my computer all day and finally gave up and shut it down. i will do this immediately. thanks ever so much.

Modified by wumzels2