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

Log in

11,490 extensions found in Web Development

Filter results
Search results
  • JIRA Oldest First

    JIRA Oldest First

    If your admin updated JIRA to default on "newest first" comments, use this extension if you want to re-set it to "oldest first".

    AG

    10 users

  • CORS dev tool

    CORS dev tool

    Lightweight CORS web development tool allows developers to modify Ajax responses Access-Control-Allow-Origin: * and other configurations

    Atom

    10 users

  • Github Aid - repo file size

    Github Aid - repo file size

    Displays github repository file and folder sizes. Supports GraphQL and REST api modes. Also mobile friendly.

    omar-azmi

    10 users

  • Online Markdown Viewer with HTML Preview

    Online Markdown Viewer with HTML Preview

    Useful Online Markdown Viewer with HTML Preview to view markdown online, preview web pages without clutter, and open .md or .json files.

    mdapp leadtech

  • Web Injector

    Web Injector

    Customize any website by injecting your own CSS and JavaScript. Includes tools for Dark Mode and RTL text fixing.

    Eslam Gomaa

    10 users

  • ALH- All Links Highlight

    ALH- All Links Highlight

    Quickly highlight all interlinks in yellow and external links in orange in a web page

    nvnjtrn

    10 users

  • Sound Level Meter

    Sound Level Meter

    shows a graph and sound's decibel values (min/avg/max) by measuring the environmental noise

    Chandler Stimson

    10 users

  • SCI-HUB Alternative

    SCI-HUB Alternative

    One can easily find the research article by entering DOI in searchbox..

    PANKAJ ASWAL

    10 users

  • Chat GPT DOM Optimizer

    Chat GPT DOM Optimizer

    Automatically removes old messages from DOM, improving performance and memory usage in long conversations

    Mashrur Sakif

    10 users

  • BR Helper | Скрипт для Форума

    BR Helper | Скрипт для Форума

    Black Russia Helper — расширение разработанное для автоматизации ответов на темы форума forum.blackrussia.online. Оно значительно упрощает взаимодействие с форумом, позволяя автоматически вставлять шаблоны сообщений.

    TheFuZeeXD

    10 users

  • px-to-em-converter

    px-to-em-converter

    Online/Offline calculator for your custom EM needs.

    Kushan Gunasinghe

    10 users

  • CORS Bypass Hosts

    CORS Bypass Hosts

    Configure initiator hosts and apply test-only CORS response headers for local or staging QA.

    Udemint

    10 users

  • CSS Disabler

    CSS Disabler

    Disable all CSS on any web page with a single click.

    Jay Oram

    10 users

  • CONTENS CMS Connector

    CONTENS CMS Connector

    Link to page in Contens CMS backend

    CONTENS

    10 users

  • WellKnown

    WellKnown

    Checks the current domain for .well-known/ endpoints and displays them.

    Hacks and Hops

    10 users

  • Modus

    Modus

    Inject user-generated CSS and JavaScript into all webpages.

    Kanon

    10 users

  • GPTPromptMaster

    GPTPromptMaster

    Create custom Pre and Postprompts for ChatGPT

    mcfrank

    10 users

  • Quote Keeper

    Quote Keeper

    A simple tool to save text snippets from websites.

    jmemcc

    9 users

  • S3 Bucket Scanner

    S3 Bucket Scanner

    This extensions helps you to find S3 buckets while you are surfing on browser. You can easily check for public s3 buckets and may be some buckets which does't exist.

    hackruler

    9 users

  • SupaFill

    SupaFill

    Fill everything in a snap.

    Depa Panjie Purnama

    9 users

  • Drawing Tool - By Mr.Bear

    Drawing Tool - By Mr.Bear

    Draw and annotate on any webpage using an overlay canvas. You can sketch freehand, add shapes, arrows, and text, then erase or clear drawings as needed. Designed for homework, teaching, presentations, and work-related annotations.

    Mr.Bear

    9 users

  • AutoMail Extractor

    AutoMail Extractor

    Extract and organize email contacts effortlessly! This secure extension helps professionals collect leads while respecting privacy.

    FastEnd Technologies & Services

    9 users

  • AI Prompt Enhancer

    AI Prompt Enhancer

    Intelligently enhances prompts on AI chat interfaces with context-aware templates and platform-specific optimization. Works with ChatGPT, Claude, Gemini, and Perplexity.

    Likheet Shetty

    9 users

  • Browse Timer

    Browse Timer

    Track time spent on websites with smart reminders, pause/resume, and detailed analytics. Improve productivity with customizable time limits.

    Emon Adhikari

    9 users

  • Gemini Solver: Тесты Cisco & IT

    Gemini Solver: Тесты Cisco & IT

    Сдавайте экзамены уверенно! Мгновенный анализ вопросов на экране с помощью Google Gemini 2.5. Распознает текст, схемы и голос. Обходит Shadow DOM на NetAcad.

    dubkoff

    9 users