1327562 - Escape key doesn't hide toolbars in fullscreen mode in some cases

Status: NEW

(Firefox :: Toolbars and Customization, defect)

Description

[arni2033]

>>>   My Info:   Win7_64, Nightly 49, 32bit, ID 20160526082509
STR_1:
1. Open new window. Open url [1] in a new tab (2nd). Open url [1] in a new selected tab (3rd).
2. Switch to fullscreen mode (F11)
3. Open bookmarks sidebar (Ctrl+B)
4. Hover mouse over the top 1px of the screen, and over the 2nd tab (at the same time)
5. Press Escape once.  (If you didn't notice the bug, keep pressing Escape once per second)

AR:  Step 5 - image twitches to the bottom by ~25px for ~0.1s, then teleports to its original place
ER:  Step 5 - Escape key is supposed to hide toolbars, because nothing in chrome prevented it

> [1] https://bugzilla.mozilla.org/skins/contrib/Mozilla/tabzilla.png


STR_2:  (reference of good behavior)
1. Open new window.
2. Switch to fullscreen mode (F11)
3. Hover mouse over the top 1px of the screen
4. Wait 3 seconds, then press Escape once

AR:  Step 4 - toolbars hide, just as expected

<> video