For many years I used Opera as my browser. As Opera Software decided to kill their very own desktop browser and replaced it with a featureless Chrome-based clone, I switched to Mozilla Firefox. Out of the box, Firefox is not perfect for me, but installing a few add-ons changes the situation. I have hand-picked 5 must-have add-ons which improve the Firefox experience. Add-ons are the real power of Firefox and have been for a long time. Today, I would like to share with you this list of my favorite add-ons, and who knows, maybe you will find them useful too!