Extension source viewer
View source code of Firefox add-ons and Chrome extensions (crx/nex/xpi) from addons.mozilla.org, the Chrome Webstore and elsewhere, with CRX Viewer (crxviewer).
Extension source viewer is available to install from Firefox Browser Add-ons and for download from this page. It has 1,707 daily users The latest version is 1.7.0, and it was published a year ago.
Install from Firefox Browser Add-onsTotal download count: 0 (Only count downloads from Firefox-Stats)
All available versions
You can find the current and older versions of Extension source viewer here. You can download the archived versions or inspect their source codes.
As a free user, you can only download the latest version.
Upgrade to download older versions
| Version | Download | Size | Download count | Timestamp |
|---|---|---|---|---|
| 1.7.0 | XPI · ZIP · Source code | 247.50K | 0 | 2023-12-10 |
| 1.6.12 | Paid users only | 246.64K | 0 | 2022-03-28 |
Install XPI file
An XPI file, short for "XPInstall," is a compressed file format used primarily by Mozilla applications, like Firefox and Thunderbird, to distribute and install add-ons or extensions. These files are similar in function to CRX files for Chrome but cater to the Mozilla ecosystem.
- Simply drag-and-drop the XPI into Firefox to install the add-on.
Install ZIP file
- Download the Extension source viewer ZIP file
- In Firefox browser, go to
about:addonsto open Add-ons Manager - Click on , then select Install Add-on From File
- Select the Extension source viewer ZIP file from step 1. Extension source viewer is now installed on your browser.