Idiri

Finds the closest fragment ID or anchor for a selected location and copies it to the clipboard appended to the URI. If any text is selected, it also appends that to the clipboard. This extension is useful to people who need to provide a reference to a specific section of a long Web document, such as technical specifications, documentation, and Wikipedia articles. To use it, simply right-click on a section of text, and select Copy Section Link. The nearest linkable location (either ID or anchor) will be copied to your clipboard.

Requirements:

Windows XP/Vista, Mozilla Firefox: 1.5 3.0a7