Extension Richard Updated 28 September 2017 17:16 Follow A computer program that extends the functionality of a web browser in some manner. Related articles Content Format Comments 2 comments Sort by Date Votes Timothy Lynch 30 November 2016 21:18 Please note typo "Extenstion". 0 Comment actions Permalink Richard 30 November 2016 21:30 Many thanks Timothy for pointing out this typo! We've made the change. Thanks again. Always feel free to share any comments you may have. Should you have any Feature Requests, those would be submitted via our Community Portal. 0 Comment actions Permalink Please sign in to leave a comment.