I had some problems with Bookmarklets (a small piece of JavaScript to run from your address bar) in Firefox. The other browser with bookmarklet support was Google Chrome. However, being a non-free software, Chrome is not available in Fedora Repositories.
Google Chrome is available for GNU/Linux in Debian’s DEB package format. That means I can download the DEB package and use “alien” to convert to an RPM package and install on my Fedora. For some strange reason even alien is not available in Fedora repository.