506444 - Jetpack causes startpage to be empty.

Status: RESOLVED FIXED

(Mozilla Labs :: Jetpack Prototype, defect, P1)

Description

[glia_me]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.1.1) Gecko/20090715 Firefox/3.5.1
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; de; rv:1.9.1.1) Gecko/20090715 Firefox/3.5.1

When the Jetpack 0.4 Add-on is activated in Firefox 3.5.1, the startpage is opened with the correct URL but it keeps empty (gray not white! No content rendered). When a new teb is opened then with a blank page (which is white, blank not empty), and I go back to the startpage tab, the page is rendered.

Reproducible: Always

Steps to Reproduce:
1.Install or upgrade to Firefox 3.5.1
2.Install Jetpack 0.4
3.Open a new Firefox instance
Actual Results:  
The startpage is loaded but not rendered.

Expected Results:  
The startpage should be visible.

Features I have currently installed in Jetpack:
- Wikipedia slide
- A self written feature, which just calls jetpack.notifications.show on an icon click.

Comment 1

[Nick Nguyen [:osunick]]

This has a pretty serious impact on Windows.

Comment 2

[u336495]

I was having the same problem on Minefield/Vista

but new profile resolved this

Comment 3

[Ed Lee :Mardak]

This seems to be fixed on trunk on 8/2 that contains the fix for bug 506615.

Just to summarize what I've found for this bug.. On restart or opening a new browser window, the first shown xul:browser tab is never rendered until switching to another tab and back. The contents of the browser are there and I can interact with the page by tabbing through links and pressing enter to visit them, but the content area remains gray the whole time.

This seems to be an issue of having a slidebar feature installed and switching the slidebar to be visible.

We probably can't depend on bug 506615 for Firefox 3.5, so we'll need to work around it with something else..

Comment 4

[Ed Lee :Mardak]

Bug 503110 introduced this problem to dynamically switch to visible.

Comment 5

[Ed Lee :Mardak]

http://hg.mozilla.org/labs/jetpack/rev/946f855ef326
Use opacity to hide/reshow slidebar instead of visibility to avoid causing the current tab's xul:browser to go gray when going visibile.