What are open-source most up-to-date Firefox extension to generate or/and show the table of contents of the shown HTML webpage?
Feb 10, 9:56pm

As of February 2026, the most relevant open-source Firefox extensions for generating and displaying a table of contents (TOC) for webpages are:

  1. Smart TOC

    • This extension automatically generates a table of contents from the headings on any webpage. It is open-source and available for Firefox. You can find it on GitHub and the Mozilla Add-ons store.
    • Smart TOC on GitHub
    • Smart TOC Firefox Add-on

  2. Simple Outliner

    • Simple Outliner is a free and open-source extension that creates a table of contents from the headings on a webpage. It can be triggered manually or set to auto-enable for every site you visit. It is available for most browsers, including Firefox .

Both extensions are actively maintained, open-source, and designed to improve navigation on long or complex webpages by providing a clear, clickable table of contents.

Would you like help with installation or configuration for either of these?

Feb 10, 9:56pm

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