Installing Add-ons from Web Sites
Here is a quick guide that will teach you how to install Firefox add-ons from any web site. We are using this site for an example but the process is the same for any site that you wish to install add-ons from except for the official Firefox Add-ons site.
Click on the install link for the Firefox add-on that you wish to install.
A yellow bar will appear at the top of the page, click on Edit Options.
After selecting Edit, a window will open displaying the allowed sites that can install Firefox Add-ons. Make sure that the current site is listed and click on Allow, then close.
Next, click on the install link again for the add-on that you wish to install. Follow the prompts to install the add-on and restart Firefox.
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Installing Firefox Add-ons
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