The Problem: You've got a big screen, but web pages don't render well at full width resolution beyond about 1280.
The Solution: Split your screen into multiple panes.
Fringe Benefits: Drag and Drop links among windows. Sometimes, it's better than tabbed browsing!
Installation
Grab the XPI File. If you're not prompted to install, save to disk and open with Firefox.
Once it's installed, you'll have to right click on the menu bar that includes the url bar, select customize, scroll down and find the "split" entry
and drag it to your toolbar. You can choose where to place it on the toolbar.

The image shows the v0.1 button in place on the firefox toolbar with two windows split into equal size portions spanning the entire screen.
Known Issues
Multi-Monitors
Don't even try it, as of v0.1.2, on your secondary screen. Alas, Javascript doesn't have great access to multiple window information and it looks like some heuristics will be required.
Packaging
There's no customize panel icon, etc. Lot's of work left here.
Change Log
- v0.1.3: Context menu wth support for opening right click a link to split it to a new window. Fixed menu dropdown hit target.
- v0.1.2: FFox 3 support. 1 pixel off bug fix. Improved new window logic.
- v0.1: First release
Related Tools
See also my notes page, in progress, on prior art.
Firefox Extensions
- Split Browser: Aribtrarily split the
content pane into subsections. Many of the advantages of BigScreen but a much heftier mod of firefox.
- Optimoz Gestures: The "double stack" gesture is triggered by dragging horizontally over a link, up, down, and right. It opens the link in a new window, positioning the source window as the left pane and the new link on the right. The double stack was largely the inspiration for big screen and was conceived by AndyEd in 2001.
Operating System Level
- AllSnap :Windows mod to make windows snap to screen borders.
Footnotes: Don't harm your big screen users!
Tips for supporting big screens in your design:
- Use max-width & max-height: These CSS rules are now avialble in IE, with version 7. Keep your text from going too far.
- Percent widths, constrained by max-width, rock the widescreen world.