Firefox 23 will block non-SSL content on SSL pages by default
In other words, start using the `//url.to/something-here/` shortcut and the world will be a better place.<p>EDIT: Use `//` instead of `<a href="http://`" rel="nofollow">http://`</a> or `<a href="https://`" rel="nofollow">https://`</a> and it will use whatever the protocol of the page being fetched is using.<p>EDIT 2: Double check when you use the `//` shortcut that the website you are linking to supports HTTPS, some still don't and they don't redirect properly...