Custom CSS
Overwrite or inject custom CSS into website.
What is Custom CSS?
Custom CSS is a Firefox add-on that allows web developers and CSS experts to inject their own styles into any website, effectively customizing its appearance and overriding default styling.
Add-on stats
By: Kenny Ooi
Rating: 2.00
(4)
Creation date: 2022-01-11
Weekly download count: 14
Firefox on Android: No
Manifest version: 2
Permissions:
- tabs
- storage
- http://*/
- https://*/
Size: 27.77K
Email: ke*****@qutebox.com
Ranking
Other platforms
Not available on Chrome
Not available on Edge
Want to check extension ranking and stats more quickly for other Firefox add-ons?
Install
Chrome-Stats extension
to view Chrome-Stats data as you browse the Firefox Browser Add-ons.
Add-on summary
A simple plugin which allow web developer or those who familiar with CSS to inject own custom CSS into any website to overwrite default styling, such as font-size, font-color, and so on.
User reviews
Throws all kinds of errors for no reason, even with basic elements like #header.
It doesn't have any formatting aids either, though I suppose if all you care about is size that's not a dealbreaker.
by Firefox user 17681028, 2022-12-04
Add-on safety
Risk impact
Custom CSS requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk likelihood
Custom CSS has earned a fairly good reputation and likely can be trusted.
Upgrade to see risk analysis details