Firefox is one of the best 3rd party browsers on the market today. If you have any websites that you always open when you run your browser, you can set them up as App Tabs. Sites like Facebook, Gmail and Twitter automatically open and just a click away. App Tabs are small and can't be closed accidentally.
This is a very easy and power full internet browsing software ...
Organizing often used sites that you don't want opened automatically can be quickly done in Tab Groups. They are great and with Tab Groups you can visually group related tabs, switch between your groups and quickly search through all of them. To create a tab group, click the all tabs button at the far right end of the tab strip and choose Tab Groups.