Four Essential Tweaks for Firefox 2
I - Disable Tab Scrolling
Firefox 2 sets a fixed minimum width for tabs, so rather than constantly shrinking when your tab bar is filled, tabs spill off the screen into a dropdown; a behavior reminiscent of XP’s default ‘Group similar taskbar buttons’ setting. If like me you find this thoroughly unusable, it can be disabled.
1. Hop into Firefox’s manual configuration by typing about:config into the address bar.
2. Enter browser.tabs.tabMinWidth into the ‘filter’ box, and double click on the browser.tabs.tabMinWidth value, which appears under ‘Preference Name’.
3. Enter 0 as the value.
Now restart Firefox, to open as many tabs as you like without the irritating dropdown!
Tip via: Life Hacker.