Much like manual tab proxies, a feature that would automatically set a page to use a specific proxy based on page URL patterns would be extremely helpful. This way, an entire site could be proxied automatically without users having to add every domain that is used for subresources to their patterns.

Unlike tab proxies, I don't think this should persist once the page URL that triggered the tab proxy is navigated away from (e.g. by hyperlink, manual address change, etc). This would make it much easier to visit sites that check your geolocation via XHR instead of the page that was initially loaded with minimal effort.

Thanks,
Elliott