CSS Breakpoint Button Firefox

CSS Breakpoint Button

See the active CSS breakpoint and viewport width on any page, with Bootstrap, Tailwind, or your own custom rule sets.

Features & Capabilities

CSS Breakpoint Button is a Firefox add-on that displays the current css breakpoint and width of the page. It supports Bootstrap and Tailwindcss frameworks and allows for custom breakpoints.

User Growth & Download Statistics

Manifest V3 Add-on
By:
Div or Die
Daily users:
21 -1
Rating:
5.00
(3)
Version:
0.4.0 Last updated: 2026-08-13
Version code:
6412203
Creation date:
2021-09-02
Risk:
Moderate risk impact Moderate risk likelihood
Permissions:
Host permissions:
  • <all_urls>
Content scripts matches:
  • *
Size:
102.96KB
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-08-20
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
Div or Die
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/css-breakpoint-button/

Permission Change History

2026-08-13: Version 0.1.1 → 0.4.0
Add Host permissions: <all_urls>

User Reviews

by Fi*****, 2026-05-25

Works perfectly. Makes me fix my code faster while I'm getting more used to the breakpoints in Bootstrap. Thanks!
by Ro*****, 2023-12-21
View all user reviews ›

Is CSS Breakpoint Button Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

CSS Breakpoint Button requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

CSS Breakpoint Button is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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Best CSS Breakpoint Button Alternatives

Here are some Firefox add-ons that are similar to CSS Breakpoint Button: