By: dayleguy
Download Code Thirtynine (current and past versions) for Firefox
Latest Version:
2.0 Updated:
7 years ago Removed
Ready to install?
Code Thirtynine is available for download. Be careful when installing it.
Available versions
You can find the current and older versions of Code Thirtynine 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 |
|---|---|---|---|---|
| 2.0 | XPI · ZIP · Source code | 215.68KB | 0 | 2019-05-13 |
2.0 215.68KB
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 Code Thirtynine ZIP file.
- In Firefox browser, go to
about:addonsto open Add-ons Manager - Click on ⚙, Install Add-on From File

- Select the Code Thirtynine ZIP file from step 1. Code Thirtynine is now installed on your browser.
Best Code Thirtynine Alternatives
Here are some Firefox add-ons that are similar to Code Thirtynine: