so that they close when the tab changes.

Comment on attachment 8796684 [details] Bug 1299891: Make pageAction panels tab-specific. https://reviewboard.mozilla.org/r/82442/#review82518

Pushed by maglione.k@gmail.com: https://hg.mozilla.org/integration/autoland/rev/4a2a991b97a8 Make pageAction panels tab-specific. r=jaws

Mark 51 as fix-optional. If it's worth uplifting to 51, feel free to nominate it.

Comment on attachment 8796684 [details] Bug 1299891: Make pageAction panels tab-specific. Approval Request Comment [Feature/regressing bug #]: N/A [User impact if declined]: Prior to this change, tab-specific panels often stayed open after switching away from the tab that they apply to. This causes some confusion, and has been reported multiple times. [Describe test coverage new/current, TreeHerder]: The behavior of these panels is thoroughly tested, and this patch adds additional tests for the new behavior. [Risks and why]: Very low. This is a one-line change which adds a single attribute to a <panel> element. The panels already auto-close in this manner when they lose focus. This change just extends the behavior to a related circumstance. [String/UUID change made/needed]: None.

Hi :kmag, What is the feature or regressing bug of this issue?

Tab-specific panels were implemented in bug 1171746

Comment on attachment 8796684 [details] Bug 1299891: Make pageAction panels tab-specific. Enhance user behaviors. Take it in 51 aurora.

I was able to reproduce the initial issue on Firefox 49.0.1 under Windows 10 64-bit. Verified fixed on Firefox 52.0a1 (2016-10-19) and Firefox 51.0a2 (2016-10-19) under Windows 10 64-bit, Ubuntu 16.04 32-bit and Mac OS X 10.12.1. PageAction panel is successfully closed while: - opening a new tab (CTRL/CMD+T) - switching between tabs (CTRL+TAB) - closing a tab (CTRL/CMD+W)