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[Sean Fitzpatrick <sean.fitzpatrick@xxxxxxxxxxx>]

This is still a problem in 11.10 - I've upgraded my netbook to Oneiric
Alpha 3.  I have this problem on both my desktop (64 bit, AMD graphics)
and netbook (32 bit, Intel graphics).  I notice the bug with Firefox
most often but it's probably more correct to classify this as a Unity
bug - there is some problem with the way it handles windows - if you use
the keyboard to navigate to a workspace, and then use the mouse to focus
a window, the window does not always get properly focused.  I noticed
this with other applications (eg Empathy) as well.

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https://bugs.launchpad.net/bugs/796897

Title:
  Context menus don't work properly after keyboard-based workspace
  navigation in Unity

Status in “firefox” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: firefox

  There is an annoying bug with Firefox in Ubuntu 11.04 with the Unity
  desktop: frequently when I try to access context menus (either right-
  click menus or the URL drop-down) they disappear as soon as I move the
  mouse.  It also often takes several clicks to get the menu to come up
  at all.  For example, to open a link in a new tab, I right click on
  the link, and would normally then click on 'Open Link in New Tab' but
  cannot, as the menu disappears.  Instead, I have to right-click and
  then type 'T'.

  The bug is reproducible on my machine.  It occurs whenever I have Firefox running in one workspace, and have switched to another workspace (perhaps to check email in Thunderbird), if I use the keyboard to move back to Firefox's workspace (i.e. using Ctrl+Alt+arrow keys).  Usually Firefox is the only open window in its workspace.
  On the other hand, if I use the Unity Launcher to return to firefox, the bug never occurs.  (And I can resolve the issue if I navigate away from Firefox to another workspace, and then return by clicking on Firefox in the launcher.)  While this does provide a workaround, it's not ideal for two reasons:
  1. When the bug does occur, it's very frustrating to have the menu disappear on me.
  2. Keyboard navigation is practically instant, whereas launcher-based switching takes more time - I have to switch to the mouse, then unhide the Launcher, and then click on the firefox icon.

  Somehow if I use the keyboard to switch to Firefox's workspace, the
  window is not getting the right mouse focus - although left-click and
  scrolling seem to work fine.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: firefox 4.0.1+build1+nobinonly-0ubuntu0.11.04.3
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic x86_64
  NonfreeKernelModules: fglrx
  Architecture: amd64
  Date: Mon Jun 13 18:01:14 2011
  FirefoxPackages:
   firefox 4.0.1+build1+nobinonly-0ubuntu0.11.04.3
   flashplugin-installer N/A
   adobe-flashplugin N/A
   icedtea-plugin 1.1~20110420-0ubuntu1
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: firefox
  UpgradeStatus: No upgrade log present (probably fresh install)

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