cancel
Showing results for 
Search instead for 
Did you mean: 

Why am I getting JavaScript errors?

SOLVED
Highlighted
New User

Why am I getting JavaScript errors?

I get this JS error when changing pages (any page almost) and it doesnt matter if FB is open or not: evalInSandbox:Error: Permission denied for <https://facebook.com> to create wrapper for object of class UnnamedClass

It is followed by a further JS error: Error: Permission denied for <https://facebook.com> to create wrapper for object of class UnnamedClass

What is going on?

1 ACCEPTED SOLUTION

Accepted Solutions
Site Moderator

Re: Why am I getting JavaScript errors?

Hi idowning

That is quite possible.

Did you try to disable this extension?

19 REPLIES
Site Moderator

Re: Why am I getting JavaScript errors?

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.
New User

Re: Why am I getting JavaScript errors?

I'm running Social Fixer to block suggested posts on fb. I wondered if this was a possible cause.

Site Moderator

Re: Why am I getting JavaScript errors?

Hi idowning

That is quite possible.

Did you try to disable this extension?

New User

Re: Why am I getting JavaScript errors?

Yeah, the problem stopped under "restart with extensions disabled" so I went to help/troubleshooting information/reset and it reloaded with all my favourites, history etc intact. Thanks a lot

New User

Re: Why am I getting JavaScript errors?

I started getting these two errors immediately with the 22.0 upgrade. I am also running NoScript 6.2.2.2 (auto-upgraded simultaneously with Firefox) and SocialFixer; but the latter should only run if I'm on a Facebook page. These errors happen on lots of pages. They stopped when I blocked "Facebook Connect" and "Facebook Social Plugins" in Ghostery.

New User

Re: Why am I getting JavaScript errors?

The problem went away when I upgraded SocialFixer (and Ghostery, which was another automatic upgrade). Between auto-upgrades of add-ons and FireFox itself, it's hard sometimes to maintain control of what changes are related to what possible new problxxxx features. :-)

Case closed (for me)

New User

Re: Why am I getting JavaScript errors?

The solution to fix this bug caused by Mozilla Firefox 22.0 update, you simply upgrade Social Fixer here: http://socialfixer.com/blog/category/releasenotes/

New User

Re: Why am I getting JavaScript errors?

As I suggested above, I had already made this discovery. Thanks

New User

Re: Why am I getting JavaScript errors?

Well, that didn't work for me, because when I try to go to the Social Fixer website in Firefox I get an error message.