We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

Este fío arquivouse. Faga unha nova pregunta se precisa axuda.

extensions.legacy.enabled is not working in FF 57, any way to enable old extensions?

  • 2 respostas
  • 7 have this problem
  • 4 views
  • Last reply by Moses

oldman1881
oldman1881
more options

tried extensions.legacy.enabled, but it is not working. Any way to use the legacy extension in FF 57 above?

tried extensions.legacy.enabled, but it is not working. Any way to use the legacy extension in FF 57 above?

All Replies (2)

user1929
user1929
more options

It is no longer possible to use legacy extensions with Firefox 57, as many of the internal API's that those extensions depended on have been removed. If you're looking for a replacement for a legacy extension, there are several lists of suggested alternatives available:

https://mozilla.github.io/extension-finder/ https://docs.google.com/spreadsheets/d/1TFcEXMcKrwoIAECIVyBU0GPoSmRqZ7A0VBvqeKYVSww/edit#gid=0

If you can't find the addon you're looking for on one of those lists, you can also ask at the add-ons forum.

Hope that helps!

Moses
Moses
  • Moderator
more options

As user1929 mentioned, Firefox doesn't allow legacy extensions as of v57. You can use Nightly or Developer Edition to continue using legacy extension but keep in mind that those add-on may not work as before since APIs have been removed.