Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Add-on icon

DevFlip version history - 2 versions

DevFlip by Freakin18

There are no ratings yet
0 Stars out of 5
5
0
4
0
3
0
2
0
1
0
DevFlip version history - 2 versions
  • Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.

  • Latest version

    Version 1.2

    Released Mar 28, 2026 - 21.78 KB
    Works with firefox 142.0 and later
    DevFlip Pro has arrived! This version transforms DevFlip from a simple highlighter into a professional-grade front-end debugging companion.

    🚀 What's New
    Universal Inline Editing: Every property is now interactive. Edit HTML attributes (id, href, src), CSS properties, and accessibility metadata directly from the tooltip.

    Visual Layout Debugger: Professional-grade overlays for Margins (orange), Padding (green), and Grid/Flexbox containers (dashed lines). Includes a live Dimensions Label.

    Accessibility (A11y) Auditor: Real-time WCAG contrast ratio calculation, image alt text verification, and form label association checks.

    Advanced Live Editor: Dedicated 'Edit' tab for bulk class editing, HTML content modification, and raw CSS injection.

    Productivity Features:
    Keyboard Shortcuts: Use 1-5 to switch tabs instantly.
    Copy as CSS: Generate a full CSS rule from your live edits with one click.
    Breakpoint Indicator: Real-time viewport width and Tailwind breakpoint detection.
    Precision Updates: Edits now use !important to ensure they bypass page CSS, with Live Toast notifications (bottom-right) confirming every update.

    Source code released under MIT License

    Download Firefox and get the extension
    Download file
  • Older versions

    Version 1.1

    Released Mar 22, 2026 - 18.69 KB
    Works with firefox 142.0 and later

    Source code released under MIT License

    Download file
Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Browsers

  • Desktop
  • Mobile
  • Enterprise

Products

  • Browsers
  • VPN
  • Relay
  • Monitor
  • Pocket
  • Bluesky (@firefox.com)
  • Instagram (Firefox)
  • YouTube (firefoxchannel)
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version.