Notepad entry (will be updated every once in a while).
Some Add-Ons for Firefox that I use:

Abduction – Helpful tool to create screen- or webshots.
BetterPrivacy – Since the methods of datamining get better, one needs better defense.
ColorZilla – A colorpicker, ’nuff said.
DNS Prefetch – While Firefox 3.5 will do DNS prefetching to speed up the browsing, [...]

So, to comply with a request, here’s a bit more about Bookmarklets (or Favelets, as they are called with an inferior browser). Bookmarklets allow you to execute small commands that interact with the current website (or a part of it). To be precise, they are just short (since bookmarks have a certain max size, depending [...]

I’ll start using the blog as some kind of notepad for stuff I always end up searching elsewhere.
Starting with a simple method to edit webpages (but only for display in the browser). Copy and paste to the url bar: Link
(Works as a bookmark as well.)