We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

Firefox upgraded this a.m. - Now I'm getting all sorts of JavaScript errors

  • 2 replies
  • 1 has this problem
  • 1 view
  • Last reply by cor-el

more options

I get these two on FaceBook:

evalInSandbox:Error: Permission denied for <https://facebook.com> to create wrapper for object of class UnnamedClass

Error: Permission denied for <https://facebook.com> to create wrapper for object of class UnnamedClass

I get these two on FaceBook: evalInSandbox:Error: Permission denied for <https://facebook.com> to create wrapper for object of class UnnamedClass Error: Permission denied for <https://facebook.com> to create wrapper for object of class UnnamedClass

Chosen solution

hello tami, please update to the latest version of social fixer at http://socialfixer.com/blog/category/releasenotes/ and afterwards go to firefox/tools > addons > extensions and remove the outdated version that is listed there...

Read this answer in context 👍 2

All Replies (2)

more options

Chosen Solution

hello tami, please update to the latest version of social fixer at http://socialfixer.com/blog/category/releasenotes/ and afterwards go to firefox/tools > addons > extensions and remove the outdated version that is listed there...

more options

Note that your System Details List shows two Social Fixer extensions:

  1. Social Fixer 6.603
  2. Social Fixer 7.501

Make sure that you only keep the latest version.