Abbreviations.com per STANDS4

Get instant explanation for any acronym or abbreviation that hits you anywhere on the web!

Abbreviations.com is the world's largest and most comprehensive directory and search engine for acronyms, abbreviations and initialisms on the Internet. Abbreviations.com holds hundreds of thousands of entries organized by a large variety of categories from computing and the Web to governmental, medicine and business and it is expanding daily.

To use this extension simply select a word on any web page you're visiting and click on the extension icon. A pop-up window will open with all possible explanations for the selected word.

Note: The extension will not work in tabs that were open prior to installation. After installing this extension, either reload your open tabs or restart Firefox.