To use these add-ons, you'll need to download Firefox.

Log in

13,385 extensions found in Web Development

Filter results
Search results
  • Website Auto-Opener

    Website Auto-Opener

    Automatically open websites on specific days and times.

    Blaese

    1 user

  • CSP DSB

    CSP DSB

    Modify or remove Content-Security-Policy headers on any website. Edit directives or use no-csp to disable CSP entirely.

    十八铭

  • Audio Finder & Player

    Audio Finder & Player

    Find audio files exposed by webpages you choose and play it directly in Firefox.

    slander8107

  • Comunidad WordPress Venezuela

    Comunidad WordPress Venezuela

    Recursos y Enlaces para Desarrolladores WordPress

    Jordi Cuevas

    1 user

  • pr-reactions

    pr-reactions

    Aims to make work with github a bit more comfortable by introducing new features

    jsnjack

    1 user

  • Smart Enable Right Click & Copy

    Smart Enable Right Click & Copy

    Professional extension to bypass right-click and copy restrictions on websites with advanced defenses.

    ahmed abuzeid

    1 user

  • Simple QR Code (Generator and Scanner)

    Simple QR Code (Generator and Scanner)

    Generate and scan QR code in one click.

    Kazuto Iris

    1 user

  • copylink.dev | Copy link with shortcuts

    copylink.dev | Copy link with shortcuts

    Copy links with shortcuts. On supported sites, create Slack emoji-enhanced links.

    wintorse

    1 user

  • DevTabs

    DevTabs

    Developer-focused new tab with projects, bookmarks, notes, and handy tools (JSON formatter, JWT decoder, UUID generator, and JSON diff).

    abhishek

    1 user

  • ErrorLens

    ErrorLens

    Translate tecranslate technical errors into plain English.hnical errors into plain English.

    herobrinewtf

    1 user

  • doech

    doech

    Visualize DoH and ECH usage!

    nis

    1 user

  • HeaderSmith – cod3rjava

    HeaderSmith – cod3rjava

    Modify/override request headers in Firefox based on user-defined rules (with optional URL regex filter).

    cod3rjava

    1 user

  • CybereinforceThreatEnforcement

    CybereinforceThreatEnforcement

    Enterprise-controlled URL/domain blocking enforced via Azure backend rules.

    Enis Aksu

    1 user

  • Feedback Widget for Snootl

    Feedback Widget for Snootl

    View and add Snootl feedback directly on project websites.

    justDev s. r. o.

  • AutoVote Enhancer

    AutoVote Enhancer

    Automatically detects and clicks upvote buttons on supported websites, ensuring seamless engagement.

    Jack

    1 user

  • codefmt: code formatter and linter

    codefmt: code formatter and linter

    format and lint javascript, python, and hubl in zapier, n8n, pipedream, make, and hubspot editors. powered by biome and ruff.

    codefmt

    1 user

  • Travel Deals Finder

    Travel Deals Finder

    Automatically search, suggest, and track travel tours and packages with competitive prices.

    Curtis Chambers

    1 user

  • Fetch Response Modifier

    Fetch Response Modifier

    Modifies the response from fetch requests to specific URLs.

    my personnel extension

    1 user

  • Open Page in Popup

    Open Page in Popup

    Adds a top left button to open the current page in a clean, minimal interface popup window.

    AlyxE

    1 user

  • Toolship: Toolkit for DEV & QA

    Toolship: Toolkit for DEV & QA

    Toolship is a powerful browser extension built for web developers, QA engineers, and power users. It combines rule-based HTTP request control with a full in-page developer toolkit — intercept and modify network requests, inspect elements, record bugs

    Shridhar TL

    1 user

  • Retro Color Picker

    Retro Color Picker

    A feature-rich developer color picker, palette extractor, and typography spy-glass, wrapped in a nostalgic Windows 95 aesthetic.

    Ghasali

    1 user

  • Picshot

    Picshot

    Capture a region of any page, annotate it, and copy to clipboard. Fast, private, zero network.

    Umer Farooq khan

    1 user

  • Ghost API

    Ghost API

    Ghost API: Real-time Payload and Network Sniffer

    Abdelrahman Ashraf

    1 user

  • Delta Executor

    Delta Executor

    Run and save custom JavaScript snippets on any webpage with a simple popup interface.

    Marien

    1 user

  • Zen Key Lock Indicator

    Zen Key Lock Indicator

    A beautiful, theme-aware floating indicator for active key locks (Caps Lock, Num Lock, Scroll Lock) in Zen Browser.

    Omer Arif

    1 user