Open Bug 1347389 Opened 3 years ago Updated 3 years ago

Tab title disappears indefinitely if I move tab to new window while something is loading in iframe


(Firefox :: Tabbed Browser, defect)

3.6 Branch
Not set



Tracking Status
firefox52 --- wontfix
firefox53 --- affected
firefox54 --- affected
firefox55 --- affected


(Reporter: 684sigma, Unassigned)




(Keywords: testcase)

I have a problem with Firefox Beta 53. It also happens in Firefox ESR 45.
Sometimes when I move tab to new window, the tab title disappears indefinitely.
It happens unpredictably, however, I noticed one specific scenario when it happens

1. Open this url in a new tab:
data:text/html,<title>hello world</title><iframe src="data:text/html,<body onload=''>"></iframe>
2. Move the tab to new window

Result: The tab title isn't visible
Expected: The tab should display the title
See Also: → 1347370
Has STR: --- → yes
Ever confirmed: true
Keywords: testcase
Version: 45 Branch → 3.6 Branch
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:55.0) Gecko/20100101 Firefox/55.0

I have tested your issue on latest FF release (52.0), latest Nightly build (20170316030211) and managed to reproduce it. I can see that tab title is missing when tab is moved to a new window.
See Also: → 1353738
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