HighlightAll is an extension for Firefox web browser, HighlightAll makes use of Firefox built-in functions to highlight all occurrences of a word just by selecting it with the mouse. The whole idea is to give a simple and convenient means of searching for a word. There is no context menu, no additional action requested, a simple selection by dragging or double clicking will do the trick.

In addition, HighlightAll displays in the status bar how many times the selected text was found.
Enabling/disabling can be done with a customizable keyboard shortcut, or you can set it to be always active.

Note also that HighlightAll keeps the selection active once the job is done, so you can still copy/paste it.

Requirements:
* Firefox

The license of this software is Free, you can free download and free use this browser plug-ins software.