Huzzah! bramus_cssextras 0.5.0 has been released! No new features have been added, yet this version differs a lot from the previously released versions of bramus_cssextras: Under the hood bramus_cssextras has been totally rewritten to make it TinyMCE 3.0 compatible.
In FireFox (or any other Mozilla/Gecko based browser), the caret in input fields and textareas sometimes just disappears (viz. it’s not there). To be more precise it has something to do with input fields and textareas inside fixed-positioned elements. Found a CSS fix a few months ago, but forgot about it, so sticking a post-it on myself right now so my brain won’t let me down anymore.