Open this page in Firefox and click Install, then accept the permission prompt. In any other browser the button just downloads a file that does nothing.
What you get
The same extension as the Chrome release, from the same source tree — not a cut-down port. Every feature is verified working on Firefox 153: syncing your Watch Later, bulk delete, the channel and topic breakdowns, filtering and sorting, bulk move or copy to another playlist, drag-and-drop reordering, multi-account support, bulk transcript download, and Send to Gemini Notebook.
Installing
Open this page in Firefox 153 or newer.
Click Install for Firefox above.
Firefox asks you to confirm the add-on and its permissions. Accept.
Updates arrive on their own from this domain — there is nothing to subscribe to and no reason to revisit.
Privacy, same as everywhere else
No servers, no tracking, no account. TidyWL uses the YouTube session you already have, and your playlist data stays on your machine. The single exception is Send to Gemini Notebook, which you trigger yourself: the links you picked go to Google under your own login, because that is the entire point of the feature. Nothing else leaves.
Questions
The Firefox build is signed by Mozilla, but submitted as unlisted rather than published in the public add-ons directory, so it is distributed from tidywl.com instead. It is the same code as the Chrome release, built from the same source tree. Signing is what matters for security: Firefox refuses to install an unsigned extension at all, and this one carries Mozilla's signature.
Yes. The extension ships with an update URL pointing at tidywl.com, so Firefox checks for new versions the same way it does for directory add-ons. You do not need to come back to this page.
Firefox 153 and newer. Earlier versions are not supported: 153 is the only version TidyWL has been tested against, and claiming support for releases nobody has verified would be guessing.
Not yet. YouTube's mobile site is a different page structure entirely, so the desktop build will not work there and it has not been tested. Chrome for Android supports no extensions at all, so Firefox is the only browser where mobile support is even possible — it is on the list, not in the build.
No. Both channels are built from one source tree and ship the same version, and the exact build number is on the install button above. Every feature is verified working on Firefox 153, including sync, bulk delete, multi-account, move to playlist, bulk transcript download, and Send to Gemini Notebook.
