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

Latest firefox update has knocked out Mendeley and Clip to OneNote addons

  • 2 replies
  • 2 have this problem
  • 2 views
  • Last reply by cor-el

more options

Firefox asked to update this morning so I clicked on yes. Now, my 'Save to Mendeley' and 'Clip to OneNote' addons refuse to work. Added and removed them several times, restarted firefox, nothing works. Only difference in system between yesterday (when everything worked perfectly) and today is the update in firefox browser. Clicking on addons does absolutely nothing now, not even an error message. I really like firefox and would like to stick with but may have to migrate back to Chrome because these little addons are lifesavers for me. Please help.

Firefox asked to update this morning so I clicked on yes. Now, my 'Save to Mendeley' and 'Clip to OneNote' addons refuse to work. Added and removed them several times, restarted firefox, nothing works. Only difference in system between yesterday (when everything worked perfectly) and today is the update in firefox browser. Clicking on addons does absolutely nothing now, not even an error message. I really like firefox and would like to stick with but may have to migrate back to Chrome because these little addons are lifesavers for me. Please help.

All Replies (2)

more options

This will disable add-on signature enforcement; Enter about:config into your Firefox address bar Click the I'll be careful button Find xpinstall.signatures.required in the list Right click the preference Select Toggle until the value is false https://support.mozilla.org/en-US/kb/add-on-signing-in-firefox

https://wiki.mozilla.org/Firefox/AddOns/Status/Updates#Exec_Summary “Currently targeting Signing with no pref to turn off in Firefox 47”

more options

You can check the Browser Console (Firefox menu button or Tools > Web Developer; Ctrl+Shift+J) to see if there are error messages about these extensions.