383019 - Rendering freezes after right-click on Fx in task bar

Status: RESOLVED WORKSFORME

(Core :: XPCOM, defect)

Description

[Aaron Racine]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.4) Gecko/20070515 Firefox/2.0.0.4
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a6pre) Gecko/2007060204 Minefield/3.0a6pre

Right-clicking on Fx in the task bar freezes page rendering.  Rendering remains frozen until you click somewhere in Fx to get rid of the context menu you created with the right-click.  At that point, everything seems to render almost immediately, making it pretty clear that the page data was still loading in the background, despite the fact that rendering is not happening.

Reproducible: Always

Steps to Reproduce:
1.  View a busy page, e.g. http://news.google.com/
2.  Right-click on Fx in the task bar as the page is rendering
Actual Results:  
A context menu pops up, as you would expect.  Rendering appears to freeze until you click somewhere else in Fx.

Expected Results:  
I'd expect the rendering to continue regardless of a context menu from the task bar, like it does in 2.0.0.4.

Comment 1

[Samuel Sidler (old account; do not CC)]

I can confirm this. Don't see any obvious dupes.

Comment 2

[Ria Klaassen (not reading all bugmail)]

If the reporter means that http://news.google.com/ stops building up I can't test this for it loads within a fraction of a second here.
Assuming that the reporter means that gif animations on pages stop when you do Windows things like right clicking on the taskbar button or dragging the window or resizing it with the mouse, this is a dupe. 

Comment 3

[Samuel Sidler (old account; do not CC)]

The entire drawing of the page stops for me. Try a site like http://en.wikipedia.org or something similar. Maybe maps.google.com? Something that's complex and/or large enough to take a while to load.

Even though the drawing and loading visually stop, as soon as the context menu is dismissed, the page displays as if it had been drawing the entire time. Compare with branch.

Comment 4

[Martijn Wargers (dead)]

Ria, you made this bug blocking bug 326273, so that means you found the regression range to be between 2006-05-10 and 2006-05-11?
And so the "[needs-regression-range]" Whiteboard keyword can be removed?

Comment 5

[Ria Klaassen (not reading all bugmail)]

(In reply to comment #4)
Indeed, Martijn.

Comment 7

[Benjamin Smedberg]

This sucks, but I don't think it's serious enough to block.

Comment 8

[Abe - QA (:Abe_LV)]

Not reproducible in windows-XP with latest nightly. Closing this as works for me.
If anyone can still reproduce it, feel free to reopen the issue and provide more information. Thanks

--
Version 	48.0a1
Build ID 	20160405030214
Update Channel 	nightly
User Agent 	Mozilla/5.0 (Windows NT 5.1; rv:48.0) Gecko/20100101 Firefox/48.0