Redirector
Posted: Last updated:Redirector is a Firefox add-on that lets you create redirects for specific webpages, e.g. always redirect http://bing.com to http://google.com. It was originally done by request for someone on the Mozillazine forums. Include/excludepPatterns can be specified using regular expressions or simple wildcards and the resulting url can use substitutions based on captures from the original url. The add-on can for example be used to redirect a site to its https version, redirect news paper articles to their print versions, redirect pages to use specific proxy servers and more. It's hosted at the Mozilla Add-ons website, where you can read more about how the addon works and download the latest version. Support requests can be posted here in the comments.
Official Redirector page | Download latest version | Version History | Source code