Open Bug 1328042 Opened 3 years ago Updated 3 years ago

Flash plugin notification briefly appears and disappears, causing content on the page to twitch

Categories

(Core :: Plug-ins, defect)

defect
Not set

Tracking

()

People

(Reporter: arni2033, Unassigned)

References

Details

(Keywords: regression)

Attachments

(2 files)

>>>   My Info:   Win7_64, Nightly 49, 32bit, ID 20160526082509
STR_1:
0. Set Flash to "Ask to activate" or intall an obsolete version of Flash
1. Open  http://tvzvezda.ru/news/sport/content/201606111555-edp6.htm  in a new selected tab
2. Wait 1 minute (or maybe less. See screencast)

STR_2:
0. Set Flash to "Ask to activate" or intall an obsolete version of Flash
1. Open attached "testcase 1"


AR:  Plugin notification appears and disappears, so content on the page twitches
ER:  Either X or Y  (i.e. please leave content along)
 X) No Flash plugin notification at all
 Y) Flash plugin notificaion shouldn't disappear

Note:
 Marked as regression, because at some point (bug932854) content started to twitch w/o clear reason

This is regression from bug 932854 (see Note 2). Regression range:
> http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=a475f94bb1b1&tochange=f2adb62d07eb@ Benjamin Smedberg [:bsmedberg]:
It seems that this is a regresion caused by your change. Please have a look.
No longer blocks: 1277113
Mozilla/5.0 (Windows NT 10.0; WOW64; rv:54.0) Gecko/20100101 Firefox/54.0
Build ID: 20170130030205

I can only reproduce this issue when following STR_2, I'm not seeing the plugin notification bar appear and disappear  when following STR_1.
Component: Untriaged → Plug-ins
Product: Firefox → Core
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