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!

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

Wannan tattunawa ta zama daɗaɗɗiya. Yi sabuwar tambaya idan ka na bukatar taimako.

Add-on failed to install because of failed connection to Add-On Manager

  • 1 amsa
  • 1 yana da wannan matsala
  • 1 view
  • Amsa ta ƙarshe daga cor-el

more options

I tried adding 5 different add-ons with the same results. I even re-booted each time to no avail. It says it downloads the add-on but it will not install. Working with Windows XP-SP2 on an old Dell Latitude C600. Everything worked fine until the latest update. Tried removing Firefox and re-installing. Don't know what else to do. Please help.

I tried adding 5 different add-ons with the same results. I even re-booted each time to no avail. It says it downloads the add-on but it will not install. Working with Windows XP-SP2 on an old Dell Latitude C600. Everything worked fine until the latest update. Tried removing Firefox and re-installing. Don't know what else to do. Please help.

All Replies (1)

more options

Make sure that the "Get Add-ons" tab isn't selected on the Firefox/Tools > Add-ons page, but the Extensions tab or one of the others.

Do you get an error message when you try to install an extension?