cancel
Showing results for 
Search instead for 
Did you mean: 

Since upgrading, I get a Javascript Error popup on every site I try to visit.

SOLVED
Highlighted
New User

Since upgrading, I get a Javascript Error popup on every site I try to visit.

Since upgrading to Firefox 17.0.1, many webpages spawn a popup ( or several popups) with a very vague error message: [Javascript Application] Error: Syntax Error . It makes using the browser kind of impossible. Any ideas?

1 ACCEPTED SOLUTION

Accepted Solutions
Site Moderator

Re: Since upgrading, I get a Javascript Error popup on every site I try to visit.

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.


Further information can be found in the Refresh Firefox - reset add-ons and settings article.

Did this fix your problems? Please report back to us!

3 REPLIES
Site Moderator

Re: Since upgrading, I get a Javascript Error popup on every site I try to visit.

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.


Further information can be found in the Refresh Firefox - reset add-ons and settings article.

Did this fix your problems? Please report back to us!

Site Moderator

Re: Since upgrading, I get a Javascript Error popup on every site I try to visit.

The Social Fixer extension has been reported to cause this issue.

New User

Re: Since upgrading, I get a Javascript Error popup on every site I try to visit.

Social Fixer disabled and now the world is spinning again in greased groove. No need to reset FF