Dass es den Short-Cut in Adblock Plus nicht gibt, ist Absicht:
Zitat von http://adblockplus.mozdev.org/faq_project.html#shortcutsWhy is it so difficult to add a keyboard shortcut for ...?
It isn't. However, keyboard shortcuts in the browser window are shared space. It is impossible to use simple shortcuts — those are already taken by the browser. And even the more complicated Ctrl+Shift+Something shortcuts are used by many extensions. The more shortcut keys we use, the more likely we are going to get conflicts with other extensions.
Adblock (the original, without Plus) defines five shortcut keys and then goes on a "search and destroy" mission to remove conflicting shortcut keys from other extensions. This basically means that Adblock considers itself first in line among all other extensions, to the point of overriding their definitions and breaking their functionality. That's not the direction in which I would like to go with Adblock Plus.
Zu den Unterschieden der Versionen von Adblock Plus gibt es hier einen langen Thread:
http://www.firefox-browser.de/forum/viewtopic.php?t=30660
Alexander