Inject custom CSS into any website

Latest Version

Version

1.0.1

Update

November 30, 2024

Size

137KiB

Developer

CSS Inject Extension

An extension to inject custom CSS into any site you want and have it be saved. The CSS will persist across sessions and your preferences will be saved.

The best part of this extension is that it has minimal permissions, which reduces the risk of this being malware or being used in a trojan horse attack. Basically other extensions that need to inject javascript onto the page can also track your browsing history. This doesn't, because I only ask for permissions at runtime. This leads to a more secure experience if the only thing you want to do is inejct CSS.

The source code is at https://github.com/aadilmallick/css-injector

**Current features**

- Persistent injected custom CSS
- Remove annoying toasts with an option in the options page
- Unlimited storage
- Code styling

**Future features**

- Add options for matches on URLs instead of just domain name

Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "name": "CSS Inject", "description": "Inject custom CSS into any website", "version": "1.0.1", "manifest_version": 3, "icons": { "16": "icon.png", "48": "icon.png", "128": "icon.png" }, "action": { "default_popup": "popup.html", "default_title": "Inject CSS", "default_icon": "icon.png" }, "permissions": ["storage", "scripting", "activeTab", "unlimitedStorage"], "optional_host_permissions": [""], "options_page": "options.html", "background": { "service_worker": "background.js", "type": "module" }}

Download CRX(137KiB)