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web extensions github topics github skip to content navigation menu toggle navigation sign in appearance settings platform ai code creation github copilot write better code with ai github copilot app direct agents from issue to merge mcp registry new integrate external tools developer workflows actions automate any workflow codespaces instant dev environments issues plan and track work code review manage code changes application security github advanced security find and fix vulnerabilities code security secure your code as you build secret protection stop leaks before they start explore why github documentation blog changelog marketplace view all features solutions by company size enterprises small and medium teams startups nonprofits by use case app modernization devsecops devops ci cd view all use cases by industry healthcare financial services manufacturing government view all industries view all solutions resources explore by topic ai software development devops security view all topics explore by type customer stories events webinars ebooks reports business insights github skills support services documentation customer support community forum trust center partners view all resources open source community github sponsors fund open source developers programs security lab maintainer community accelerator github stars archive program repositories topics trending collections enterprise enterprise solutions enterprise platform ai powered developer platform available add ons github advanced security enterprise grade security features copilot for business enterprise grade ai features premium support enterprise grade 24 7 support pricing search or jump to search code repositories users issues pull requests search clear search syntax tips provide feedback we read every piece of feedback and take your input very seriously include my email address so i can be contacted cancel submit feedback saved searches use saved searches to filter your results more quickly name query to see all available qualifiers see our documentation cancel create saved search sign in sign up appearance settings resetting focus you signed in with another tab or window reload to refresh your session you signed out in another tab or window reload to refresh your session you switched accounts on another tab or window reload to refresh your session dismiss alert message explore topics trending collections events github sponsors web extensions star universal standard for creating browser extensions working through a w3c charter group mozilla has partnered with microsoft and opera to define a browser extension api that works across multiple browsers there is currently a preliminary specification that matches what google has implemented in chrome so that extensions written to the specification could potentially work on chrome edge opera and firefox here are 112 public repositories matching this topic language all filter by language all 112 javascript 60 typescript 27 css 5 html 5 python 3 vue 3 c 1 kotlin 1 shell 1 swift 1 sort most stars sort options most stars fewest stars most forks fewest forks recently updated least recently updated sienori tab session manager sponsor star 2 4k code issues pull requests discussions webextensions for restoring and saving window tab states chrome extension firefox addon web extensions updated may 17 2026 javascript abhijithvijayan web extension starter sponsor star 2 2k code issues pull requests web extension starter to build write once run on any browser extension chrome extension sass firefox boilerplate chrome typescript extension web firefox addon reactjs starter edge cross browser opera extension web extensions hacktoberfest chrome extension react web extension starter react extension vitejs updated mar 25 2026 typescript gildas lormeau singlefilez star 1 9k code issues pull requests discussions web extension to save a faithful copy of an entire web page in a self extracting zip file nodejs html docker cli firefox webpage zip selenium archive save web extensions maff puppeteer singlefile self extracting updated may 8 2026 javascript sienori simple translate sponsor star 1 4k code issues pull requests discussions webextensions for translating text on web pages firefox addon web extensions updated apr 21 2026 javascript devlarley widevineproxy2 star 976 code issues pull requests an extension based proxy for widevine eme challenges and license messages modifies the challenge before it reaches the web player bypasses hashes one time tokens and license wrapping chrome extension firefox addon forge firefox extension drm widevine web extensions chrome addon protobufjs encrypted media drm bypass widevine drm widevine dl widevine l3 decryptor encrypted media extensions pywidevine node widevine updated mar 15 2026 javascript foxrefire wvg sponsor star 778 code issues pull requests chrome firefox extension for pen testing to retrieve encryption keys of widevine protected content don t decrypt content unless you have the right to do it chrome extension firefox addon webassembly wasm webextension webextensions firefox extension drm web extension widevine chrome extensions web extensions firefox extensions firefox webextension web ext pyodide firefox add ons firefox addons encrypted media extensions pywidevine updated oct 29 2024 javascript glench extpay star 750 code issues pull requests discussions the javascript library for extensionpay com payments for your browser extensions no server needed chrome extension payments javascript library monetization firefox extension browser extension web extensions monetize monetisation monetise updated nov 7 2025 javascript serversideup webext bridge sponsor star 712 code issues pull requests discussions messaging in web extensions made easy batteries included messaging web extensions webext browser extensions updated may 10 2026 typescript adamlui ai web extensions sponsor star 549 code issues pull requests discussions ai browser extensions userscripts to augment your web experience javascript nlp chat machine learning google ai amazon chatbot ml duckduckgo greasemonkey openai brave userscripts chrome extensions web extensions artificialintelligence firefox addons chatgpt gpt 5 updated jul 14 2026 javascript treosh exthouse star 415 code issues pull requests analyze the impact of a browser extension on web performance performance analysis web extensions hacktoberfest lighthouse updated may 28 2022 javascript mozilla addons linter star 361 code issues pull requests firefox add ons linter written in javascript cli web extensions updated jul 14 2026 javascript samrum vite plugin web extension star 355 code issues pull requests a vite plugin for generating cross browser platform es module based web extensions web extension web extensions vite vite plugin updated sep 26 2024 typescript plasmohq bpp sponsor star 208 code issues pull requests browser platform publisher chrome extension firefox addon json schema continuous integration opera addon continuous deployment actions browser extension chrome extensions web extensions browser extensions edge addon updated feb 12 2025 typescript mobilefirstllc extension cli sponsor star 186 code issues pull requests command line tool for building extensions add ons for chromium based browsers chrome extension cli firefox addon extensions addons developer tools opera extension browser extension command line tool web extensions edge extension browser extensions updated jul 12 2026 javascript kyle n webextensiontemplate star 142 code issues pull requests create a browser extension for chrome firefox and safari in no time react chrome extension firefox safari extension chrome typescript xcode firefox addon reactjs svelte safari firefox extension browser extension web extension chrome extensions web extensions esbuild updated apr 6 2025 swift blaise io live reload star 66 code issues pull requests browser extension for web devs monitors source files on a page and reloads page or source file when a change is detected chrome extension web developer tools web extension web extensions firefox webextension updated sep 23 2023 typescript avi12 web ext deploy sponsor star 60 code issues pull requests a tool for deploying webextensions to multiple stores nodejs chrome extension automation deployment opera addon cookies edge firefox extension cli app nodejs modules web extensions edge extension chrome webstore playwright firefox addons playwright typescript firefox submission api firefox submisison api v5 updated jun 16 2026 typescript samrum create vite plugin web extension star 45 code issues pull requests an easy way to start a vite web extension project using samrum vite plugin web extension react vue preact svelte web extension web extensions vite web extension starter vite plugin updated sep 26 2024 javascript arianrhodsandlot devdocs web ext sponsor star 33 code issues pull requests a browser extension for devdocs chrome extension documentation tool devdocs web extension chrome extensions web extensions updated jan 24 2024 typescript s4wa soundcloud player star 31 code issues pull requests for all of the soundcloud heavy users chrome extension accessibility soundcloud web extensions updated oct 10 2025 javascript load more created by browser extension community group released may 7 2015 followers 301 followers website github com topics webextension related topics browser chrome chrome extension edge firefox firefox extension mozilla opera w3c footer 2026 github inc footer navigation terms privacy security status community docs contact manage cookies do not share my personal information you can t perform that action at this time