The (QuickFolders Pro only) optional shortcut keys for quickJump or quickMove
(Copy) do not work if none of the following checkboxes on Options General are
checked:

1) Use keyboard shortcuts
3) Rebuild Tabs with Shortuct
3) ALT-LEft / ALT-RIGht for previous / next Tab

Also to be activated from all off THunderbird needs to be restarted

Created an attachment (id=8185) [details]
QF 4.5 prerelease 47

Patched version.

I made a property isKeyboardListeners() that should take care of all possible
keyboard shortcuts; also move the event initialization code into a separate
function which is also called when accepting option changes - this will ensure
that Thunderbird does not need to be restarted in order to activate the key
listener for any of the shortcuts.

   get isKeyboardListeners() {
        return this.isUseNavigateShortcuts 
        || this.isUseKeyboardShortcuts 
        || this.isUseRebuildShortcut 
        || this.isQuickJumpShortcut 
        || this.isQuickMoveShortcut 
        || this.isQuickCopyShortcut;
   } ,

Release 4.5 - Resolved Fixed