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What add ons slow down firefox

Mozilla Aims to Speed Up Slow Firefox Add-Ons

"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.

So what's Mozilla doing about slow extensions? First, it's running automated performance tests on the top 100 add-ons and posting the results. The worst offenders, which currently include the FoxLingo Translator/Dictionary and Firebug, a developer's tool, will be publicly shamed. Users will know which add-ons to avoid.

Mozilla is asking developers of slow add-ons to improve the speed of their software. In addition, its add-on gallery will show warnings of programs that slow Firefox's startup time by 25 percent or more. A future version of Firefox will display these warnings in the browser's Add-Ons Manager too.

Third-party software is notorious for installing performance-killing browser toolbars and other add-ons without your permission. To prevent that, an upcoming version of Firefox will not allow the installation of third-party add-ons in the browser without your consent."

Slow Performing Add-ons

a list of some of the slow ones

I use a fair number of add ons but surprisingly the only ones I use that made the list are xmarks, adblock plus, WOT. I have used some of the others but do not keep them on at all times.

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