Edition Mode turns any text on a web page into an editable area. You can choose to modify its content in just a few simple steps. To use it, just install the extension and you're all set. You can make your text editable just by right-clicking on it. 

To modify text in a button or link, just click on it. This will make all the texts editable. You just have to select a text you want to make editable and click the icon in the top right corner of Chrome's window. The extension will be activated, and you'll be able to modify the content.  To deactivate it, just press the same icon again.

There are a lot of ways to make a text editable. You can use Ctrl + Shift + E to turn all the text on the page editable. Edition Mode doesn't work on all web pages.