Works with Firefox v3.6.28 Rated 5 out of 5 stars

In the "About this Add-on" section it states that this add-on "requires Firefox 14 or later". This is not entirely correct. While I cannot speak to other earlier versions of Firefox, as of this review, "Download YouTube Videos as MP4" v1.6.5 works without issue in Firefox v3.6.28 when the minimum version restriction is removed.

I did not remove any stars from my review because despite the artificial restriction, the author has done a superb job of creating and maintaining this add-on. I see no reason why I can't spend 1 minute removing the restriction so that it works in my choice of browser. Yet, if possible, I would like to see the minimum version restriction lifted so that future updates automatically appear within Firefox.

This review is for a previous version of the add-on (1.6.4.1-signed). 

Hello and thanks for your review. I'm aware that the extension works in Firefox 3.6. The artificial restriction has only one explanation: it was a way to remove a line of code that triggers a warning in the Mozilla Add-ons site. I hoped that this will speed up the review process.