Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Two versions of QuickTime Plug-in causing problems

  • 4 replies
  • 1 has this problem
  • 4 views
  • Last reply by cor-el

TomSutcliffe
TomSutcliffe
more options

I'm having problems with QuickTime content. My add-ons list contains two versions -- QuickTime 7.2 and QuickTime 7.7.1. Even when I click Never Activate on the older version (which can't be updated, since it is blocked) QuickTime doesn't work. I can't find any way to delete the older version of the add-on. Is there any way to do that? Or do I have to delete Firefox (along with all my saved bookmarks) and start again?

I'm having problems with QuickTime content. My add-ons list contains two versions -- QuickTime 7.2 and QuickTime 7.7.1. Even when I click Never Activate on the older version (which can't be updated, since it is blocked) QuickTime doesn't work. I can't find any way to delete the older version of the add-on. Is there any way to do that? Or do I have to delete Firefox (along with all my saved bookmarks) and start again?

All Replies (4)

kobe
kobe
more options

reintalize the plugin database.

refer to: https://support.mozilla.org/en-US/kb/troubleshoot-issues-with-plugins-fix-problems#w_re-initializing-the-plugins-database

TomSutcliffe
TomSutcliffe Question owner
more options

No joy. Tried everything. Re-initialized the plugins- database. Manually removed the Quicktime files. They're still there. And if I click Never Activate on one QuickTime plug-in it does the same to the other.

kobe
kobe
more options

can you reproduce in a new profile?

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can see the file path of all plugins, whether enabled or disabled, on the about:plugins page.