Exthouse: Browser Extensions Performance Analyzer

Analyze extensions impact on loading performance. CLI and node.

Quick Start

npx @treosh/exthouse <extSourceDir>

(npx comes with npm 5.2+ and higher)

Installation

Install CLI using npm:

$ npm install --global @treosh/exthouse

or via yarn:

$ yarn global add @treosh/exthouse

Usage:

exthouse [--help] [<command>]

$ exthouse <extSourceDir>

Options:
  --runs <number>    amount of runs to evaluate median performance value (default: "5")
  --url <url>        url to evaluate extension performance (default: "https://example.com/")
  --format <format>  output format options: [json] (default: "json")
  --debug            debugging
  -V, --version      output the version number
  -h, --help         output usage information

Extensions Preset

• AdBlock
• Grammarly-for-Chrome
• Evernote-Web-Clipper
• Ghostery-Privacy-Ad-Blocker
• Honey
• LastPass-Free-Password-Manager

Development

For Chrome extensions:

• download extension using https://chrome-extension-downloader.com/
• copy path to the MY_EXTENTION.crx and use cli

For Firefox extensions (experimental):

• open Firefox addons page (e.g. https://addons.mozilla.org/en-US/firefox/addon/grammarly-1/)
• right click on add button and save-as into extensions/ff folder (original answer - https://support.mozilla.org/en-US/questions/1112553)

Inspired by: https://twitter.com/denar90_/status/1065712688037277696