A user style manager which can load local files and apply UI styles even in Firefox 57+

reStyle promo image
What is reStyle?

reStyle is a user style manager add-on for Firefox 57+ that supports installing styles from, GitHub, and other websites. It allows you to load local styles and apply UI styles to the browser. With reStyle, you can customize and update styles for normal websites, browser UI, and about:-pages. It also offers a development mode for loading local styles and requires NativeExt to be installed for enhanced functionality.

Stats date:
By: NiklasG
Users: 47 ▼ -2
Rating: 3.30 (10)
Version: 0.4.1 (Last updated: 2018-11-01)
Creation date: 2017-08-14
Weekly download count: 1
Firefox on Android: No
Manifest version: 2
  • storage
  • nativeMessaging
  • notifications
  • sessions
  • tabs
  • webNavigation
  • <all_urls>
Size: 203.16K
URLs: Website
Risk impact: High risk impact
Risk likelihood: Low risk likelihood

Other platforms

Not available on Chrome
Not available on Edge

This user style manager supports the usual installation of styles from URL and polling those URLs for updates. In addition to that, you can load local styles and apply styles to the browser UI.

Installing styles

Styles can be installed from, GitHub or any other website that offers appropriate styles for download. On, open the styles detail page, choose your settings if the style offers any, then click the reStyle icon in the browsers toolbar and "Add style" in the popup. On other pages, you need to open the .css file before clicking the reStyle icon.

UI styles

Starting with Firefox 57, it is no longer possible for Add-ons to directly apply user styles to anything else than normal websites. As a workaround, reStyle recognizes styles that will no longer work and writes them to the

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User reviews
by Владимир, 2021-09-18

by bitelse, 2020-10-07

"even in Firefox 57+" and yet Firefox 59 is required to install.
by Nil, 2018-09-10
View all user reviews
Risk impact

reStyle is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this add-on. Review carefully before installing. We recommend that you only install reStyle if you trust the publisher.

Risk likelihood

reStyle has earned a fairly good reputation and likely can be trusted.

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