1107022 - 'Undo' button for add-ons/extensions which will get disabled by blocklist doesn't do anything

Status: RESOLVED DUPLICATE of bug 1191920

(Toolkit :: Add-ons Manager, defect)

Description

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

Attachment: screenshot (German Firefox)

Firefox 34.0.5 on Windows 8.1

If Firefox detects that an installed extensions should get disabled due to being blocklisted and the addon is not restartless, it will shows in the Add-ons Manager two links: 'Restart now' and 'Undo'. Clicking the 'Undo' link does nothing.

Steps to reproduce:
1. Create a new profile and close it immediately.
2. Download (not install) Flashblock 1.5.17 from https://addons.mozilla.org/firefox/downloads/file/201166/flashblock-1.5.17-fx.xpi
3. Modify the maxVersion in the install.rdf so that's higher than the Firefox version you use for testing and repack it.
4. Open the profile directory, go into the 'extensions' folder, copy the xpi there and rename it to {3d7eb24f-2740-49df-8937-200b1cc08f8a}.xpi
5. Start Firefox with the profile and allow the add-on installation.
6. Wait until the blocklist gets checked.

Actual result:
The blocklisting can't be undone by the user, ...

Expected result:
... so there shouldn't be a 'Undo' button.