1328042 - Flash plugin notification briefly appears and disappears, causing content on the page to twitch

Status: RESOLVED INCOMPLETE

(Core Graveyard :: Plug-ins, defect)

Description

[arni2033]

>>>   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.

Comment 3

[Simona Badau, Desktop QA]

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.

Comment 4

[u597032]

Adobe Flash is no longer supported.