semantische erkennung als firefox extension
Torbutton provides a button to easily enable or disable the browser's use of Tor.
selektiv proxies benutzen
This extension allows you to use your Gmail Space (2 GB) for file storage. It acts as a remote machine. You can transfer files between your hard drive and gmail. This is similar to "Gmail Drive" on windows platform.
detects microformats on webpages and exports to ical/vcard