v1.5.27

Changes since 1.5.26:
Added: Disallow restarting/unloading locked tabs
Improved: Disable Faviconize Tab in vertical mode

Fixed: Allow alt-click to select text inside link [Fx13+]
Fixed: Disallow saving tab history in bookmarks in private window [Fx20+]
Fixed: Disallow moving tabs between non-private window and private window [Fx20+]
Fixed: Fix tabBarPosition option [Fx28+]
Fixed: Fix toolbar button icons [Fx29+]
Fixed: Change back Undo Close Tab button icon to improve compatibility
Fixed: Split off Panorama enhancements to improve compatibility