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.

I am not able to install or update any extension in firefox or firefox developer edition

  • 2 majibu
  • 1 ana tatizo hili
  • 1 view
  • Last reply by cor-el

Mohammed Alhendi
Mohammed Alhendi
more options

I try to install some extension but there some issue I don't know about it. I try to reinstall firefox developer again this issue not solved and refreshed it and not solved. and finally install normal firefox with new profile and this issue still not solved.

I can only install extension file if I download it directly form download library and convert the file from .xpi to .zip and install it manually in add ons manager.

please let me know how to solve this error.

I try to install some extension but there some issue I don't know about it. I try to reinstall firefox developer again this issue not solved and refreshed it and not solved. and finally install normal firefox with new profile and this issue still not solved. I can only install extension file if I download it directly form download library and convert the file from .xpi to .zip and install it manually in add ons manager. please let me know how to solve this error.
Attached screenshots

All Replies (2)

user104147805413306348376805769878442569366
user104147805413306348376805769878442569366
more options

Hi Mohammed Alhendi, If you are using ESET please see this thread -

ALL extensions appear to be corrupt. https://support.mozilla.org/en-US/questions/1381931

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

The System Details shows: 

SecuritySoftware:
 registeredAntiVirus: ESET Security
 registeredAntiSpyware: 
 registeredFirewall: ESET Firewall