A collection of add-ons that make your Firefox even more secure, yet stay pretty lightweight. Included are some useful add-ons that aren't security related.
Blocks annoying video ads on YouTube, Facebook ads, banners and much more.
Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).
Collector's Note Speed up your browsing by blocking those pesky - and usually slow - advertisements! Note: don't add too many filters, or browsing will be seriously impacted.
The first and only download manager/accelerator built inside Firefox!
Collector's Note DownThemAll! allows you to speed up your downloading. Plus, no more hunting down millions of links (from photo galleries and the like), simply open up dTa!, select the files, and be prepared to down them all - fast!
The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.
Collector's Note While NoScript is notable mostly for its useful white-, black-, and grey-listing functionality, it is perhaps one of the most feature-packed privacy- and security-related add-ons. NoScript protects you from Cross Site Scripting (XSS), ClearClick attacks, and other nasty methods hackers use to, well, hack. You can also set certain sites (like Twitter, Facebook, your WebMail provider) to automatically use an HTTPS connection, which is one more layer of security against hackers.
Protect your privacy. See who's tracking your web browsing and block them with Ghostery.
Collector's Note Despite its controversy, Ghostery appears to be a useful tool -- especially if you don't want to use the block-by-default mode of NoScript. This add-on allows you to automatically block only those sites that impact your privacy the most: trackers.
Find out which websites you can trust. WOT adds intuitive traffic light-style icons next to search results and URLs to help you make informed decisions about whether to visit a site or not.
Collector's Note So, now you have the tools to block those sites that are bad and allow those sites that are good. But you can't always tell how legitimate a site is just by visiting -- and you might not want to visit certain sites in the first place. Enter Web of Trust, the community-based add-on that helps you make a decision: to visit, or not to visit. But like any community-based tool, be sure to use your judgement as well, not just Web of Trust. Common Sense is the best defense!
Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.
Collector's Note While Adblock Plus does a wonderful job at filtering out most advertisements, some slip through the cracks, especially text-only ads. This nifty add-on allows you to easily select what element to add to your custom filters list.
Make the resources behind container pages easily downloadable by DownThemAll!
Collector's Note So you've come across a page that links to a bunch of download sites. You try to download them all with dTa!, but the "container pages" prevent you from doing so, resulting in a bunch of useless HTML pages. Simply install this add-on and you will no longer have to worry!