>>> My Info: Win7_64, Nightly 49, 32bit, ID 20160526082509 STR_1: 1. Open bug 1257815, click on the page 2. Hover mouse over text "1235542" to see the tooltip 3. Press Ctrl+L to focus urlbar and start typing contents of tooltip AR: Tooltip hides right when I'm going to start typing. In fact, it hides when I hold Ctrl. ER: Either X or Y. X is better X) Firefox shouldn't hide tooltip to let me type Y) If you think that everything's as expected, then: In STR_2, STR_3 tooltip should hide when I hold Ctrl, for consistency reasons. Otherwise browser behavior will be illogical STR_2: (reference of good behavior) 1. Open bug 1257815 2. Focus urlbar 3. Hover mouse over text "1235542" to see the tooltip 4. Press Ctrl key AR: Tooltip doesn't disappear, just as expected STR_3: (reference of good behavior) 1. Open bookmarks sidebar 2. Click on this web page 3. Hover mouse over any bookmark to see the tooltip AR: Tooltip doesn't disappear, just as expected

Arni2033, This seems as a dupe of Bug 494139. Please note that the same behavior is encountered also on Chrome 55.0.2883.87 m. Andrew, could you please express your opinion in regards to this issue?

I think that Mozilla developers should first decide (possibly in bug 494139) for every keystroke/keypress whether or not they want to hide tooltip, and then resolve bug 494139, and then resolve this bug. Note that marking this as dependent for bug 494139 will cause the situation when people can use bug 494139 as an excuse for not resolving this bug, but it's not completely incorrect: 494139 is filed as enhancement, and even if Mozilla developers will decide that it's not what they want to implement,this bug will stay valid, as it describes that some tooltips do hide on keypress, while others do NOT hide.

Is this related to e10s? http://searchfox.org/mozilla-central/source/layout/xul/nsXULTooltipListener.cpp#230,234 seems relevant.

I'm probably missing something but I don't see why this is a Core issue.

Maybe Neil has an opinion.

We've always hidden tooltips whenever any key is pressed. This doesn't seem to happen with native Windows tooltips though, so perhaps we should remove it. On Mac and Linux though, tooltips do disappear when most keys are pressed, except modifier keys.

Pushed by neil@mozilla.com: https://hg.mozilla.org/integration/mozilla-inbound/rev/a12e66cb7bc2 on Windows, don't hide tooltips when a key is pressed. On other platforms, allow hiding tooltips when a key is pressed except when modifier keys are pressed alone, r=felipe

I have reproduced this bug with Nightly 53.0a1 (2017-01-01) (64-bit) on Windows 7, 64 Bit! This bug's fix is verified with latest Beta! Build ID : 20170403072723 User Agent : Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:53.0) Gecko/20100101 Firefox/53.0 [bugday-20170405]

Moving from Core::Untriaged to Core::General https://bugzilla.mozilla.org/show_bug.cgi?id=1407598