Download Web Developer
Download Web Developer (current and past versions) for Firefox
Web Developer is available to install from Firefox Browser Add-ons and for download from this page. It has 77,055 daily users. The latest version is 3.0.1, and it was last updated a year ago.
Total download count: 2 (Only count downloads from Chrome-Stats)
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 download up to 3 latest versions.
Upgrade to download older versions
| Version | Download | Size | Download count | Timestamp |
|---|---|---|---|---|
| 3.0.1 | XPI · ZIP · Source code | 569.78KB | 1 | 2025-01-30 |
| 3.0 | XPI · ZIP · Source code | 569.49KB | 1 | 2025-01-30 |
| 2.0.5 | XPI · ZIP · Source code | 1.12MB | 0 | 2025-01-30 |
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 and unpack the Web Developer ZIP file to a directory of your choice.
- In Chrome browser, go to
chrome://extensions - Enable Developer mode.
- Click on the Load Unpacked button.
- Select the directory of with the unpacked Web Developer ZIP file from step 1. Web Developer is now installed on your browser.
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