F2 is used by many other web application. Since 1990, spreadsheet editing's one of the most important button. Etc. F2 is not documented, nor switchable off or changeable. You have to investigate how and why you have an undemanded function key. Unacceptable. Google spreadsheet editing becomes almost unusable with this addon. When you want to edit a field, you push the F2 button - since 1990 - and BANG you have some translation oriented page opening... Because of this addon.