TYPO3 Core

When is use Firefox with the Firebug console I get the following errors:

In WEB->PAGE CONTENT after a page is selected and clicked several times on the question-mark (above Show hidden content elements or beside the columns selector) :

uncaught exception: Element.alignToXY with an element that doesn't exist

In WEB->VIEW PAGE after a page is selected:

Error: Syntax error, unrecognized expression: option[value="{"width":300,"height":629}"] 
jquery-1.11.1.min.js Line:2 col:12719

When I login or SU to a non-admin user with only WEB->PAGE CONTENT rights

TypeError: this.el is null
...s.allowDomMove=false;this.el=Ext.get(a);this.render(this.el.dom.parentNode)},add...
typo3temp/compressor/ext-all-bbf6132f6878322e49cb9b6ba61043f0.js Line:21 col:137852