"Utility" From Dictionary.com:
1) The quality or condition of being useful.
2) A useful article or device.
4) (computer science) a program designed for general support of the processes of a computer;
An "AC Utility" would, by these definitions, be any program or device that was generally useful to the playing of Asheron's call or the computer processes involved. I'm gonna go out on a limb here and assert that:
A) a large number of people who play AC do online searches to find answers to questions they have about the game and
B) a browser extension which allows quicker search access by Firefox users of the single most popular AC information site would be quite "useful".
C) the linked Firefox browser extension qualifies as a very handy "AC Utility" indeed.
I've installed and used it, and found it quite lovely. Thanks to Rizgar and the original poster of the other thread, Crilen007.
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AC - Jothony of Eastham, Chen Jo, Jothany
Vanguard - Jikar
All Retired