Firefox add-ons are a great way to add features and improve security in Mozilla's browser, but they can seriously slow performance too. Now Mozilla is taking action against those speed-killing extensions.

In an April 1st blog post, Mozilla product manager Justin Scott outlines a series of initiatives designed to minimize delays caused by add-ons.

"Firefox performance is extremely important to our users, especially how quickly it starts up and loads websites. Customization is also extremely important, and while most add-ons cause only a tiny performance impact, others can significantly slow down Firefox," Scott writes.

More: http://www.pcworld.com/article/224144/