extension-install

Managed browser installer/uninstaller runtime for Extension.js CLI.

This package powers:

• extension install <browser>
• extension install --browser <browser[,browser2]|all>
• extension install --where
• extension uninstall <browser>
• extension uninstall --all
• extension uninstall --where

For a single browser, the positional form is the canonical command. Use --browser when you want multiple targets, browser families, or all.

When --where is used together with a browser name, --browser, or --all on uninstall, Extension.js prints the resolved managed install path(s) for those target browsers. Without a target, it prints the managed cache root.

Uninstall scope is limited to the Extension.js managed cache root (or EXT_BROWSERS_CACHE_DIR when set). It does not remove browser installations outside that managed location.

Linux note for edge: Playwright channel installs may require a privileged interactive session (sudo prompt). If channel install cannot proceed but a system Edge binary is already present, Extension.js will use that existing binary. Otherwise, install Edge system-wide first and then run extension install edge (or use chromium).

Default managed cache locations are stable and human-readable:

• macOS: ~/Library/Caches/extension.js/browsers
• Linux: ~/.cache/extension.js/browsers (or $XDG_CACHE_HOME/extension.js/browsers)
• Windows: %LOCALAPPDATA%\\extension.js\\browsers

Custom path override example:

• EXT_BROWSERS_CACHE_DIR=/tmp/extension.js/browsers-dev