I would like to select a word or phrase from a document and with a right-click use it as a query in my regular browser.
Hello,
This can be done with a macro. However, the macro must be specific to the module you are using. Your question specifies Writer, Calc and Impress.
For Writer, the macro in this question works → Macro that launches a Google search of the string selected in LibreOffice with only a change to which browser you are using (browser name in Shell statement near end of Sub).
You can assign the macro to a Context Menu item (Text) or a Toolbar item using Tools->Customize.