Stylish - Custom themes for any website

Stylish lets you customize any website with custom user styles (themes for websites). Choose from the largest userstyles library to change the color scheme, background, and skin for Google, Facebook, YouTube and many, many more sites.

Stylish - Personalize your Web Experience with Custom Themes

Stylish - Custom themes for any website is a Firefox add-on that enhances your browsing experience by allowing you to customize the look of any website. Whether it's enabling dark mode on Reddit, creating minimalist themes for Facebook, or changing Google's general look, Stylish has you covered. It offers easy tools to disable, edit, or delete installed themes or even create your own with its CSS editor. Stylish has themes for websites and web apps across the globe and allows you to become a creator of Youtube skins or Facebook themes if you know CSS.
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View on Firefox Browser Add-ons

Add-on stats

Users: 30,667
-314
Rating: 2.78
(957)
2 new ratings
Version: 3.1.9resigned1 (Last updated: 2024-04-25)
Creation date: 2006-02-20
Weekly download count: 284
Firefox on Android: Yes
Risk impact: Very high risk impact
Risk likelihood:
Moderate risk likelihood
Manifest version: 2
Permissions:
  • tabs
  • webNavigation
  • webRequest
  • contextMenus
  • storage
  • *://*/*
Size: 1.98M

Ranking

# 421 ▼ 5
Other rankings
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Other platforms

Not available on Chrome
Not available on Android
Not available on Edge
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Add-on summary

Analyze keywords

Stylish lets you style the web according to your personal taste.

★ Give Reddit a dark mode, use minimalist Facebook themes, or change the look of Google, Twitter and any of your favorite sites ★ Customize website backgrounds, color schemes, youtube skins, fonts and even animations ★ Easily disable, enable, edit or delete any of your installed styles (themes) ★ Create your own user styles (themes) using Stylish’s CSS editor, and share it with millions of Stylish users

Stylish has themes & skins for websites and web apps from all over the world, such as:

✔ Search Engines – Google, Baidu, Yahoo ✔ Email – Gmail themes style & personalize your email to your liking ✔ Social Networks – Facebook, Twitter, Reddit, Instagram, WeChat, and even Whatsapp themes! ✔ Developer Sites – Stackoverflow, Github, JIRA, Thunderbird ✔ Browsers – Chrome, Firefox, Opera, Safari, Baidu ✔ Youtube Themes – Stream videos night and day with your favorite Youtube skins

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User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
    Cons
    • Malicious tracking of user browsing history
    • Add-on is not functioning or dead
    • Website userstyles.org is inaccessible from Firefox
    • Extension has been described as spyware
    • Poor support for importing and editing styles
    Most mentioned
    • Stylish is not functioning anymore
    • Spyware or privacy issues
    • Userstyles.org is not accessible on Firefox
    • Users recommend switching to Stylus as a safer alternative
    • Frustration over inability to use or edit styles
    User reviews
    Consider uninstalling the malicious Stylish extension. In 2016, with no input from the userbase, through some guy, pretending to be an independent developer, it basically was sold to a shady web analytics company, Similarweb. Since then, it is actively sharing your entire non-anonymized browsing history demo with them, assuming you ever clicked on one of the flashy "Agree" buttons. It initially did this without even asking for consent, and was banned from extension stores afterwards. Currently, it still breaks store policies, yet is not banned for unknown reasons. A safe alternative is Stylus.
    by Raven9000, 2025-01-26
    by Firefox user 12579719, 2025-01-25
    Spyware
    by Phantom, 2025-01-11
    View all user reviews

    Add-on safety

    Risk impact

    Stylish - Custom themes for any website requires a lot of sensitive permissions. Exercise caution before installing.

    Risk likelihood

    Stylish - Custom themes for any website is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

    Upgrade to see risk analysis details