The Esri UK Technical Research team has created some new Google Chrome extensions to simplify searching the Esri Help pages which will be really useful to the Esri Support community. They can be found here:
To use them, type one of the keywords (enterprise, online. devs & desktop) into the Google Chrome Omnibox then hit tab or space to initialize the extension. E.g. Desktop > tab > Merge returns results for the term "Merge" from the ArcGIS Desktop help.