2.4.22 * Initialize sidebar more safely on browser's startup. * Prevent needless flashing of the vertical scrollbar. * Open new tabs from Ctrl-T as configured position more correctly. * Don't attach new same site tab if it is originally opened as a blank tab intentionally. * Close the fake context menu immediately when any item is clicked. * Keyboard operations affects correctly for the fake context menu even if the cursor is on any separator. * Refresh context menu automatically when items are modified while open. * Remove extra context menu items if an external addon is unregistered. * Make "Plain" theme more respectful of Firefox's default theme. * More respect Firefox's default favicons for tabs without site-specific favicon. * Add ability to collect logs while browser's startup process. You can print logs by running `log.logs.join('\n')` in the remote debugger, if you're running TST in the debug mode. * Update `de` locale (by sicherist, thanks!)