Closed Bug 725296 Opened 11 years ago Closed 6 years ago

Browser is unresponsive while Silverlight content is loading


(Core Graveyard :: Plug-ins, defect)

Not set


(Not tracked)



(Reporter: mihaelav, Unassigned)



(Whiteboard: [11b2])

Firefox experiences no responsiveness while interactive Silverlight content is loading.

1. Go to and select an app from the gallery (e.g. TJCOMBO.NET)
2. Visit the website an interact with Silverlight content (right click, click, etc)

Actual result: 
While Silverlight content is loading/refreshing, the browser is unresponsive. (Issue is more obvious on - right click on Silverlight content and then move focus to other browser components: tabs, awesome bar, etc)

Expected result:
Browser should not fail to respond when Silverlight conent is loading.

1. Issue is reproducble on Chrome, but NOT on IE7 and Opera 11.61
2. Issue is reproducible also on older Firefox versions (e.g. 9.0.1)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:13.0a1) Gecko/20120208 Firefox/13.0a1
Mozilla/5.0 (Windows NT 5.1; rv:13.0a1) Gecko/20120207 Firefox/13.0a1
Mozilla/5.0 (Windows NT 6.0; rv:11.0) Gecko/20100101 Firefox/11.0

Issue is also reproducible on Firefox 11 beta 2.
Whiteboard: [11b2]
Can you please investigate the regression range for this bug?
Bug is reproducible since Firefox 3.6
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv: Gecko/20110319 Firefox/3.6.16
Reproducible also on  
Mozilla/5.0 (Windows NT 6.1; rv:10.0.3) Gecko/20100101 Firefox/10.0.3 ESR
Mihaela, as previously requested please track down a regression range. You can use the mozregression tool.
I could not find a regression range using the mozregression tool since I got some errors (tried on several systems), but I was able to reproduce on 3.5.19, but not on 3.0b3pre (Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9b3pre) Gecko/2008010405 Minefield/3.0b3pre)
There does not appear to be a regression here, so asking for a regression range seems silly. This is most likely a bug in silverlight and not something we need to track.
I'm marking this bug as WONTFIX per bug #1269807.

For more information see -
Closed: 6 years ago
Resolution: --- → WONTFIX
Product: Core → Core Graveyard
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