I have just installed new addon in my Firefox. It is Alexa Sparky. I’ve never known about this addon before but I feel very satisfied using it. The aim of Alexa Sparky is to show you the Alexa rank, website trends, related links, and another information from the website you visit.
Alexa Sparky in Firefox
To install it directly to your Firefox, just visit this link and Choose “Add to Firefox”
It is very recommended and useful addon if you really interesting with Alexa 
Two thumbs up from me!
[...] my previous post about alexa rank addon for Firefox, I would like to inform you about the alexa rank extensions (addon) for Chrome. Until this moment, [...]