I have a problem with Firefox Beta 52. Sometimes I mistakenly enable "Hide toolbars" option in fullscreen and want to disable it. When I disable it, toolbars don't show up. It happens unpredictably, however, I noticed one specific scenario when it happens 1. Switch to fullscreen mode. Disable "Hide toolbars" option, browse for a while 2. Enable "Hide toolbars" option. 3. While animation of toolbars is still going on, right-click any button, disable "Hide toolbars" Result: animation continues, then toolbars hide completely Expected: I disabled "Hide toolbars", so toolbars should be visible
I can't reproduce the problem in Fx52.0 on Win10, maybe missing the "browse for a while" or else.
Component: Untriaged → Toolbars and Customization
(In reply to YF (Yang) from comment #1) > I can't reproduce the problem in Fx52.0 on Win10, maybe missing the "browse > for a while" or else. No, "browse for a while" was only added to describe what I was doing. This is not necessary to reproduce. To reliably reproduce the bug, it's necessary to wait until animation of toolbars finishes, after right-clicking any button in toolbar, but before disabling the option. I'll add a video soon.
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