Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.

facebook button on my toolbar disappeared, won't install

  • 1 reply
  • 1 has this problem
  • 14 views
  • Last reply by FredMcD

cassk2628
cassk2628
more options

The facebook icon has disappeared from my menu. I tried to reinstall it, won't work.

The facebook icon has disappeared from my menu. I tried to reinstall it, won't work.

All Replies (1)

FredMcD
FredMcD
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”