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14,059 extensions found in Web Development

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  • Mimik: Step-by-Step Guides & Tutorials

    Mimik: Step-by-Step Guides & Tutorials

    Record any browser workflow as a step-by-step guide. Edit, voice-narrate, export to video, PDF or DOCX. Local-first, open source.

    Westpoint

    127 users

  • dom3d

    dom3d

    A tiny spatial DOM viewer

    Orion Reed

    127 users

  • Persistent Inspect Element

    Persistent Inspect Element

    Edit websites locally and keep changes after reload.

    Hayshemi

    127 users

  • CRM Email Sync - HubSpot Gmail Addon 100% FREE

    CRM Email Sync - HubSpot Gmail Addon 100% FREE

    Log and track Gmail emails in HubSpot — for Firefox 100% FREE

    CRM Email Sync

    126 users

  • Daemon Image Snatcher

    Daemon Image Snatcher

    Professional image extractor for Firefox. Detects and downloads all images from any webpage: img tags, lazy-loading, CSS backgrounds, pseudo-elements.

    Kehai Systems

    126 users

  • OpenPutty

    OpenPutty

    An extension to open Putty from your Firefox browser.

    Gireen

    126 users

  • New Tab Suspender v2

    New Tab Suspender v2

    A very lightweight tab suspender to suspend inactive tabs that reduces an overall memory usage of firefox, uses a firefox native discard api

    TabSuspender

    126 users

  • withExEditor

    withExEditor

    From the context menu (right click), you can "View source" "View selection" or "Edit text" with your favorite editor.

    asamuzaK

    126 users

  • Clear Website Data

    Clear Website Data

    Clear cookies, storage, cache, and more from the current tab — all with one click.

    Shasika Semasinghe

    126 users

  • WonderSwitcher

    WonderSwitcher

    The WonderProxy Switcher allows you to switch between HTTP proxy servers quickly and easily to speed up your website testing. Import proxies from your WonderProxy account or add your own custom servers.

    WonderProxy

    126 users

  • Open in VSCode

    Open in VSCode

    Clone and open git repos from GitHub in VS Code.

    Youssef Atta'i

    125 users

  • Save Image in Preferred Format

    Save Image in Preferred Format

    Download any image in JPG, PNG, SVG, or WebP format directly from the browser.

    Raman Das

    125 users

  • CMS Backend Opener

    CMS Backend Opener

    Opens a new tab/window with backend-login of the CMS, which the current website is using. Just press [Alt] + [y]. Supported CMS's: Typo3, Joomla, WordPress, Drupal, Contao, WebsiteBaker, Weblication, CMSQLite and Oxid.

    Andy R.

    125 users

  • Odoo Barcode Scanner

    Odoo Barcode Scanner

    This extension emulates a barcode scanner in the Odoo web UI. It types your code character-by-character and presses Enter, just like a real USB scanner. Perfect for testing without hardware. Credits: Firefox port by Nuprod (Chrome -> Firefox)

    Nuprod

    125 users

  • RTL for AI Sites

    RTL for AI Sites

    Smart right-to-left for AI sites like Claude, ChatGPT, Gemini, Grok, DeepSeek, Perplexity, Copilot, Poe and Arena.

    Arman Babaei

    125 users

  • Speed Test Internet

    Speed Test Internet

    Check internet download/upload speed

    Firefox addon Free

    124 users

  • YouTube Audio

    YouTube Audio

    Convert YouTube videos to audio (MP3).

    YouTube Audio

    124 users

  • HTTP Header Mangler

    HTTP Header Mangler

    HTTP Header Mangler inserts HTTP headers on a per host basis.

    Peter Nilsson

    124 users

  • Cathay United Bank GMBTOOL Extension

    Cathay United Bank GMBTOOL Extension

    Communicate with Cathay United Bank GMBTOOL Native Client to check users identity.

    cathaybkcertteam

    124 users

  • MJsonViewer

    MJsonViewer

    Yet, just another json content viewer plugin for Firefox. Before using, you should go to the "about:config" page and toggle the "devtools.jsonview.enabled" to false first.

    D0n9X1n

    124 users

  • Youtube Tv Version For Firefox

    Youtube Tv Version For Firefox

    Version 1.0.2 fixes errors that prevent the script from running.

    Kush Mittal

    124 users

  • Site Wipe

    Site Wipe

    Clear cookies, cache, and storage—just for the current site.

    Drowzy Dev

    124 users

  • AutoRefresh

    AutoRefresh

    Automatically refreshes pages after a set interval. This is a task that is useful when conducting web application testing.

    Sheentee - Extensions

    123 users

  • Word to PDF - Convert and Merge

    Word to PDF - Convert and Merge

    Convert MS Word documents (doc and docx) into PDF format

    emano waldeck

    123 users

  • ASS Subtitle Player

    ASS Subtitle Player

    Play local .ass and .srt subtitles on any web video. Optimized for HiAnime with a sleek, modern UI and aspect ratio support.

    Kerim Demirkaynak

    123 users