UnloadTab is an extension for Firefox which can unload inactive tabs – saving RAM (memory) and freeing up CPU resources. In my own tests with multiple tabs open, RAM usage is typically reduced by more than 50%.
Microsoft have launched a new tool to block Windows 7 SP1 from receiving a future IE10 upgrade as an automatic update. Businesses and private users of other browsers can block upgrades via this toolkit.
Time Restart is a new Firefox addon which can automatically restart Firefox after a set amount of time (in minutes) that you define. It may help users who suffer from a lack of RAM or Firefox slowing down over time.