Network request review5 min read
How to Review Network Calls in Extension Source
Audit Chrome extension network requests by tracing fetch, XHR, endpoint URLs, and payloads. Includes an original code example and a browser mock check.
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Practical guides to Chrome and Edge extensions, from finding an ID to downloading and reviewing a package.
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11 guides · Newest first
- MV3 service workers5 min read
Finding What an MV3 Service Worker Does
Chrome extension service worker explained: trace an MV3 background file through events, messages, storage, and network calls with an annotated source example.
Read guide - Content script inspection5 min read
How to Trace an Extension’s Content Scripts
Inspect Chrome extension content scripts: trace manifest matches to JavaScript files, follow DOM changes and messages, and try an original page-marking example.
Read guide - Extension site access5 min read
Host Permissions vs activeTab in Chrome Extensions
Compare host_permissions and activeTab in Chrome extensions with two Manifest V3 examples. Learn access scope, grant lifetime, scripting, and common mistakes.
Read guide - Extension permissions5 min read
Chrome Extension Permissions: What Each Field Tells You
Chrome extension permissions explained with a review table and Manifest V3 example. Understand API permissions, host access, optional grants, and activeTab.
Read guide - Manifest JSON5 min read
How to Read a Chrome Extension Manifest
Read a Chrome extension manifest.json with an annotated Manifest V3 example. Understand version fields, permissions, service workers, and content script matches.
Read guide - Source inspection5 min read
How to Inspect Extension Source Without Installing It
View Chrome extension source without installing it. Download a ZIP, read manifest.json, trace scripts and network calls, and try a small source review example.
Read guide - Package backups5 min read
A Practical Chrome Extension Package Backup Workflow
Back up a Chrome extension package with a CRX file, verified version, store URL, and SHA-256 checksum. Includes a tested example and a free backup record template.
Read guide - Microsoft Edge Add-ons5 min read
How to Get a CRX from Microsoft Edge Add-ons
Download an Edge extension CRX or ZIP from Microsoft Edge Add-ons. Follow a tested store URL example, check the package version, and fix common download errors.
Read guide - Extension IDs5 min read
How to Find a Chrome Extension ID
Find a Chrome extension ID in its Web Store URL or in chrome://extensions. See a real 32-character example, check common mistakes, and learn what an ID identifies.
Read guide - Chrome Web Store7 min read
How to Download a CRX File from the Chrome Web Store
Learn how to download a CRX file or ZIP source package from a public Chrome Web Store or Edge Add-ons listing with CRXFile.
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