BarTab 2.0 (Add-On) for FIREFOX - restart Firefox or maintain all tabs open but increase starting time and save memory with this.
BarTab can intercept when tabs are loaded in the background or restored after a browser restart and will only load the content when the tab is actually visited. It also allows you to free memory by unloading already loaded tabs, either manually or automatically.
LeechBlock (Firefox-Addon) is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.
Today this longtime wanted tool saved me a damn whole work day and kept me a laser-sharp focus!
Disable Firefox Tooltips

Totally anoying when working in my bookmark folders :-[
Go type “about:config” in the address box and hit the enter. It shows a list of configurable feature, find “browser.chrome.toolbar_tips” item and double-click to turn it value to false. That’s set.






