22 articles found
Build chrome extension keyboard shortcuts into an MV3 manifest: declare commands, handle chrome.commands.onCommand, go global, and survive the 4-key cap.
Build an MV3 extension whose settings follow the user to every device — chrome.storage.sync quotas, onChanged, and the sync vs local split, with full code.
Build a Chrome extension context menu with selected text, saved links and a popup. Get full MV3 code, real screenshots and fixes for missing or duplicate menus.
Localize a Chrome extension with chrome.i18n, _locales and __MSG_. Follow a runnable MV3 example with plural forms, RTL layouts and fixes for missing messages.
Build a Chrome extension omnibox command palette with one keyword, live suggestions and saved shortcuts. Get full MV3 code with no install permission warnings.
Use the Chrome cookies API in Manifest V3 to read, edit and watch cookies. Fix empty getAll results, host permissions and duplicate cookies with runnable code.
Build a Chrome privacy API panel that checks levelOfControl before changing settings. Add optional permissions and browsing-data controls with full MV3 code.
A service worker can't hold a MediaStream. Build a Chrome extension that records the current tab's video and audio with chrome.tabCapture — full code, ~30 min.
How long does it take to publish a Chrome extension? Review timelines, rejection reasons, and the hidden work before your listing goes live in 3 stores.
A hands-on Manifest V3 tutorial: use the chrome.management API and Chrome's own permission warnings to audit every extension installed. Full runnable code.
Your content script runs once on YouTube and never again. Fix Chrome extension SPA navigation with webNavigation — or without a new permission. Full MV3 code.
chrome.scripting.executeScript end to end: inject on click with activeTab, pass args safely, and choose ISOLATED or MAIN world. Full MV3 code, ~25 min.
Chrome extension optional permissions, end to end: install with no warning, then request topSites and a single host at runtime. Full MV3 code, ~25 minutes.
Build a Manifest V3 Chrome extension that blocks trackers and strips tracking parameters with declarativeNetRequest — full runnable code, ~30 minutes.
MV3 service workers have no DOM. Build a Chrome extension that parses HTML and writes to the clipboard from an offscreen document — runnable code, ~25 min.
MV3 kills setInterval. Build a Chrome extension background job with chrome.alarms that survives service worker termination — full runnable code, ~20 min.
A hands-on Manifest V3 tutorial: build a Chrome extension side panel that persists across tabs, then make it per-site. Full runnable code, ~25 minutes.
A disabled extension can't clear its uninstall URL (setUninstallURL) before removal — the service worker is already dead. Here's why, and the server-side fix.
Chrome added a native, promise-based browser.* namespace in 148. Across the 235,887 Chrome extensions we track, here's what it changes — and what to do.
A peer-reviewed study found Manifest V3 ad blocking matches MV2 effectiveness. Here's what declarativeNetRequest really changes if you build content filters.
WXT, Plasmo, CRXJS, Extension.js, and Bedframe — five browser extension frameworks compared by build time, bundle size, and maintenance health in 2026.
Mozilla now requires all Firefox extensions to declare data collection in manifest.json. Here's exactly how to implement data_collection_permissions correctly.