1062742 - [e10s] window.open breaks in xul.

Status: RESOLVED WORKSFORME

(Core :: XUL, defect)

Description

[Pin Zhang [:pzhang] (inactive)]

Attachment: Test Addon

In e10s-enabled Firefox, calling |window.open| in browser.xul fails, it could be reproduced by installing the test addon:
  - Enable e10s on latest Nightly and restart
  - Install the test addon and restart Nightly
  - Customize the toolbar button, drag the button with label "Your Toolbar Button" to the toolbar.
  - Click on the toolbar button

Expected result:
A new window is opened with https://www.firefox.com/

Actual result:
Nothing happened, only got a meaningless error message:
   NS_ERROR_FAILURE:      ff-overlay.js:12

Comment 1

[Jorge Villalobos [:jorgev] (he/him)]

The add-on opens a window correctly in the latest nightly.

However, I noticed that it took a very long time for the window to open the first few times I tried, and it looks like a non-e10s window is being opened. I don't know if that's expected behavior.

Comment 2

[Mike Conley (:mconley) (:⚙️)]

I think this is now working properly on Nightly, and probably Aurora.

Going to close this as WFM.