"The practical effect of Mozilla’s current position will not be to drive adoption of Ogg Theora. What’s going to happen is that Safari, Chrome, and even IE9 users will be served HTML5 video, and Firefox users will get Flash. Publishers will support both HTML5 video (for Safari, Chrome, and IE9 users) alongside Flash (for browsers that don’t support HTML5 and H.264) because they already have the Flash video publishing infrastructure in place, and because Flash can be used to publish H.264-encoded video. Publishers don’t have to encode (and store) video twice; they can encode (and store) it once and serve it two different ways."

"Page Speed is an open-source Firefox/Firebug Add-on. Webmasters and web developers can use Page Speed to evaluate the performance of their web pages and to get suggestions on how to improve them."

"...features an advanced accelerator that increases speed up to 400% and it allows you to pause and resume downloads at any time."

"....discover what other readers find interesting on our site - and make recommendations of your own. With TimesPeople, you can share articles, videos, slideshows, blog posts, comments on articles, and ratings and reviews..."

"Die Firefox Erweiterung Life-of-request info zeigt 1.) die Zeit vom Klick bis zum ersten empfangenen Byte. 2.) Die Zeit vom ersten Klick bis zum vollständigen Laden einer Seite. 3.) Die Gesamtgröße der Seite und 4.) Die Zahl der Anfragen.

...egal, ob man IE mag oder nicht.. IE 6 (sic!) ist immer noch extrem weit verbreitet und man muss ihn bei Web-Apps definitiv berücksichtigen.

"....a suite of in-built maps and mapping tools for your web browser. Create and save a sidebar map using the addresses you find on web pages (highlight then drag and drop), or by manually adding locations. View traffic Info, drag and drop kml files..."

Moves your calendar with the mousewheel, Firefox + Greasemonkey required.