The Windows PC at my office has trouble running TweetDeck in its computer-run version, but it worked like a charm with the in-browser version from the Chrome Web Store.
Have a favourite in-browser or portable screenshot tool?
Really quite choppy in-browser, but it's a cool option, and it'll be great in the space-age when computers and connections are fast enough to support it running smoothly.
Omegle is an in-browser IM service that picks another user at random for ananonymous, one-on-one chat.
I downloaded the app and have used it in-browser and find it pretty hard to use.
Link to this page