For those of you who like to keep a constant eye on your investment portfolio and use Firefox as your browser, take a look at the StockTicker extension.

This extension is pretty simple to use. You just add the symbols and/or indexes in you want to monitor and set both a refresh and rotation (how often the stock symbols rotate from one to the next) time in the options and off you go. You can place the constantly updated ticker data in either the status bar or in a custom tool bar.

Go ahead and drive yourself crazy with this one…

Have you ever wanted Firefox to act as a functional file manager (much like the way Internet Explorer acts in Windows)? With the Firefly Firefox extension, you can have this functionality.

This free extension features (among others):

• Support for Windows and Linux (possibly Mac).
• View splitting.
• Auto-preview of files as long as appropriate readers are installed.
• Search features.
• “Send To” and “Open With” functionality.

While I wouldn’t say this is a ‘must have’, it is definitely a neat idea. The only thing I would be concerned about is the the security aspect…

If you like to make use of TinyURL’s and Firefox is your browser of choice, then you need to take a look at the TinyURL Creator extension.

The usage is pretty straight-forward. Your URL is taken as input and then passes this along to TinyURL to give you the same thing you would get from TinyURL’s site. While this plugin isn’t the biggest of time savers, it is a lot more convenient than having to go to TinyURL’s site every time.