A few ideas and tricks available to FireFox users:

Zoom with the mouse.
This handy tool lets you click and zoom any picture. Hold the right mouse button and turn the mouse wheel to zoom in/out. Hold the right mouse button and click left to reset to normal font size.

Search Engine updates:
Apply this link to the search bar to make it easy to search for and find a lot of WW information: Wikipedia

Download Manager
Flashgot provides a great way to manage downloads from web pages.

Link finder
Stumble is a great way to view pages found by people with like interests (WW for example).

Broadband Speed Test and Diagnostics
This tool lets you check your broadband speed and know exactly how much you paid for that T*****a will never give you.

Know of any more that are useful while browsing the forum?