If you don't have installed program for editing PDF documents on your computer, then you can use web application PDFescape which allows you to edit your documents in your browser.
Microsoft's answer to DropBox or Google Drive is called SkyDrive, now with the whole new Metro interface. We will sign in to the service, download and install sync app for your Windows computer.
Some web pages have the Save image As... option disabled on a right click when you try to save an image. Let me show you how to get that image anyway using Firefox.
If you have activated the option to store passwords in Mozilla Firefox, than you can easily look at all password you have entered when you were browsing websites.
In Google Chrome you can set the pages you want them to open on a startup. The option is a bit hidden that's why a lot of people are having hard time when trying to find it.
Sometimes we don't want others to know about our newest relationship gains or losses. This is the way your friends and other Facebook users won't even notice it when you change it.