As we already stated in our look at the best browsers for Linux, what makes Firefox so great is its almost infinite extensibility. There are hundreds of handy, useful addons available for free, and new ones are created all the time. If an addon stops working, you shouldn’t have any problems finding a fully functional alternative. With so many wonderful addons in existence, choosing the best ones is not an easy task.

If you’ve ever written a forum post, filled out a form or even done some work in WordPress, and then lost it all because your computer froze, your browser crashed or the power went out…well, then you’ve known the ultimate frustration of the online world. Firefox users can rely on Lazarus, a form recovery addon, to prevent this from happening. It saves everything you type into forms and text boxes in an encrypted database in your Firefox profile folder, and lets you restore text when it gets lost for any reason. Some users have reported problems and dissatisfaction with Lazarus, so if you’re one of them, you can replace it with a similar addon called Form History Control.

NoScript

DownThemAll is one of the most popular addons for Firefox because it’s easy to use and does its job extremely well. It’s a download manager and accelerator which helps you download files from anywhere on the Web, and lets you pause and resume downloads even if you close the browser. It can download the entire website in a single click, or filter just one type of content (like JPG images) and scrape them from a website. DownThemAll splits your files into chunks, which enables amazingly fast downloads. Try it out to see how it works – you might be surprised by how practical it is.

NoSquint

Typos happen and can be annoying, especially in the browser, because they either result in an error or take you to a website that you never wanted to see. URL Fixer is based on a simple premise – it corrects typos in the address bar, essentially working like an auto-correct function in the browser. Apart from default substitutions, you can add your own URL fixes and changes in the Preferences dialog. URL Fixer can remember changes and add them to the list automatically.

URL Alias