One of the biggest reason for the success Mozilla Firefox is Add-ons. These add-ons extend the functionality of the browser. Recently a new tool called Mozilla Add-ons Builder was released. The Builder is a Web-based add-on SDK (you need to use Firefox to get the most out of it)
This new tool, which is obviously aimed at boosting both educational and commercial adoption of Firefox’s new add-on architecture, is actually constructed from two technologies that we’ve discussed before: Jetpack and Bespin. Jetpack is the future of Firefox add-on development and promises simpler, more powerful and ‘restartless’ extensions. Bespin is Mozilla’s new Web-based text editor.
The Add-ons Builder basically adds a rather pretty ‘file explorer’ interface to Bespin. It works, but only just. While the SDK helps you find libraries, there’s no auto-complete for library methods. The tutorial suggests you look at the source code of other add-ons for inspiration, but there’s no way of searching through them — just a big, page-after-page directory. The only desirable feature of the Add-ons Builder has to be its rapid prototyping; the ability to test your new code with a single click is very cool. I’d much rather use a desktop SDK though!
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- Mozilla Add-ons Builder (linuxtoy.org)
Experts have identified how their web browser’s ‘private mode’ setting is also vulnerable to hackers.Most web browsers offer a private mode, intended to leave no trace of surfing history on the computer.
Even if private browsing is enabled, details relating to the key remain stored on the computer’s hard drive, allowing a hacker to establish that a particular site had been visited.
A hacker could "guess what sites you’ve been to based on traces left behind," New Scientist quoted Jackson as saying.
These attacks on privacy do not require a great deal of technical sophistication and could easily be built into forensics tools. Any attacker with the knowledge to exploit the weaknesses would probably look to other attacks first, which may yield more detailed information.
If someone is capable of tracking your browsing habits in this way, then they are probably also tech-savvy enough to know about commercial spyware which could much more effectively track your computer use.