You may be asking, “What is an add-on?” An add-on is a tool that is added to your browser to allow you to have what you need there in the browser. The categories range from toolbars, bookmarks, photos, social networking sites, tabs and password managers. There are thousands of add-ons that you can get for Firefox and most browsers offer them. Many of them are free. I have never paid for one. You can check out the comprehensive list of Firefox’s add-ons at https://addons.mozilla.org/en-US/firefox/

I use a Google toolbar, bookmarks, and password manager add-ons. I strongly recommend that you check out the add-ons for your browser and see what you can find to make your life easier.