Simple White X is a revision of Simple White by Louis Chan made for compatibility with Firefox 40 and above, while retaining compatibility with Firefox 38 ESR. The last reviewed vesion is listed at addons.mozilla.org.
Simple White is a cross-platform Firefox theme that aims to simplify Firefox's appearance. With simplified color scheme and translucent tabs, Simple White delivers a clean and delightful experience of using Firefox. The theme is also hosted on addons.mozilla.org.
- Clone or download the repository
- Pack all the files using
zip -qr9XD SimpleWhiteX.xpi *
Then, you can open SimpleWhiteX.xpi in Firefox and follow the installation procedure.
While the official reviewed version is found at addons.mozilla.org, additional versions of Simple White X in xpi format can be found here.