1360172 - Multiprocess Compatible error displayed for all add-ons and webextensions from about:addons search list

Status: RESOLVED DUPLICATE of bug 1356462

(Toolkit :: Add-ons Manager, defect)

Description

[Vasilica Tamas, QA [:vtamas]]

Attachment: mpc.png

[Affected versions]:
Firefox 55.0a1 (2017-04-26)


[Affected platforms]:
Windows 10 64-bit
Ubuntu 16.04 32-bit

[Steps to reproduce]:
1.Launch Firefox with a clean profile.
2.Navigate to about:config and set extensions.allow-non-mpc-extensions to false.
3.Go to about:addons -> Extensions tab.
4.Search for an add-on (e.g Silent Block) using the search bar displayed in the top right corner of the page


[Expected Results]:
A proper multiprocess incompatible message appears only for non-mpc add-ons. 


[Actual Results]:
- “[Name] has been disabled since it is not multiprocess compatible” error appears for all add-ons and webextensions.
- The current error is not even applicable for non-mpc add-ons and should be reformulated because the add-ons are not installed. 
- See attached screenshot.

Comment 1

[Andrew Swan [:aswan]]

This was fixed by bug 1356462