Firefox 1.5
Firefox 2.x
Firefox 3.x
Windows
Mac OS X
Linux
"Bandwidth Meter and Diagnostics is a Firefox extension which performs connection speed tests in addition to providing your public IP address and domain name. Also, Internet connection status as well as several diagnostic tools are provided whenever a web page fails to load."
"This extension includes a set of tools for broadband users. It can measure the bandwidth of Internet connections and perform diagnostic tests (connectivity, ping and traceroute etc)."
"This is one of those extensions that you will probably not use very often but is good to have on hand for the times that you really need it. Being able to quickly gauge your download and upload speeds can be important for a number of reasons, one of them being to ensure that you are actually getting what you pay for. Most Internet providers offer several packages, with the higher priced options offering more in terms of speed. The only way to really prove what speeds you are actually connecting at is to use an independent testing tool like Bandwidth Meter and Diagnostics."
