Firefox is by far the best browser available to the public right now. A major strength in firefox is the use of add-ons and extensions, and the sheer number of available extensions. An interesting add-on is fotofox. Fotofox allows you to quickly process your pictures and upload them to one or more photo services, such as Flickr.

Easily select, tag, title and upload pictures from your computer to an online photo service. Works with Flickr, Tabblo, 23hq, Smugmug, Marela, and Kodak EasyShare Gallery.
NOTE: This extension is essentially the same as the Kodak EasyShare Companion extension, which is just branded differently. Please have only 1 or the other installed, not both.
HTTPS://addons.mozilla.org/firefox/4441/

Okay it's an existing add-on with a different name, it still rocks. I hope it will work with other photo services too, in the future....