Web Developer
The Web Developer extension adds various web developer tools to the browser.
Web Developer is available to install from Firefox Browser Add-ons and for download from this page. It has 86,379 active users The latest version is 3.0.1, and it was published 7 months ago.
Install from Firefox Browser Add-onsTotal download count: 2 (Only count downloads from Firefox-Stats)
All available versions
You can find the current and older versions of Web Developer 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 |
|---|---|---|---|---|
| 3.0.1 | XPI · ZIP · Source code | 583.46K | 1 | 2024-06-25 |
| 3.0 | Paid users only | 583.16K | 1 | 2024-06-12 |
| 2.0.5 | Paid users only | 1.17M | 0 | 2020-01-13 |
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 Web Developer ZIP file
- In Firefox browser, go to
about:addonsto open Add-ons Manager - Click on , then select Install Add-on From File
- Select the Web Developer ZIP file from step 1. Web Developer is now installed on your browser.