ModHeader
ModHeader is available for download. It had 19,864 daily users before it was removed from Firefox Browser Add-ons on 2024-05-01, and it has been downloaded from Firefox-Stats 79 times. The latest version is 4.4.1, and it was published 2 years ago. Be careful when installing it.
All available versions
You can find the current and older versions of ModHeader here. You can download the archived versions or inspect their source codes.
As a free user, you can only download the latest version.
| Version | Download | Size | Download count | Timestamp |
|---|---|---|---|---|
| 4.4.1 | XPI · ZIP · Source code | 394.17K | 56 | 2023-09-05 |
| 4.4.0 | Paid users only | 392.86K | 11 | 2023-08-07 |
| 4.3.8 | Paid users only | 391.09K | 1 | 2023-07-12 |
| 4.3.6 | Paid users only | 390.44K | 0 | 2023-05-04 |
| 4.3.4 | Paid users only | 370.55K | 0 | 2023-04-24 |
| 4.3.2 | Paid users only | 370.62K | 0 | 2023-04-11 |
| 4.3.1 | Paid users only | 369.61K | 0 | 2023-04-05 |
| 4.3.0 | Paid users only | 369.60K | 0 | 2023-03-27 |
| 4.2.10 | Paid users only | 369.45K | 0 | 2023-03-03 |
| 4.2.4 | Paid users only | 369.24K | 0 | 2023-02-24 |
| 4.2.1 | Paid users only | 367.79K | 0 | 2023-02-09 |
| 4.2.0 | Paid users only | 370.51K | 0 | 2022-11-18 |
| 4.1.5 | Paid users only | 369.43K | 0 | 2022-11-16 |
| 4.1.4 | Paid users only | 353.06K | 0 | 2022-11-08 |
| 4.1.3 | Paid users only | 347.29K | 0 | 2022-11-05 |
| 4.1.0 | Paid users only | 321.07K | 0 | 2022-10-26 |
| 4.0.21 | Paid users only | 319.06K | 9 | 2022-08-31 |
| 4.0.20 | Paid users only | 317.20K | 0 | 2022-08-25 |
| 4.0.19 | Paid users only | 316.94K | 0 | 2022-08-22 |
| 4.0.18 | Paid users only | 316.87K | 0 | 2022-08-19 |
| 4.0.17 | Paid users only | 316.11K | 0 | 2022-08-15 |
| 4.0.16 | Paid users only | 315.87K | 1 | 2022-08-11 |
| 4.0.15 | Paid users only | 314.89K | 0 | 2022-08-08 |
| 4.0.14 | Paid users only | 311.84K | 1 | 2022-07-26 |
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 ModHeader ZIP file
- In Firefox browser, go to
about:addonsto open Add-ons Manager - Click on , then select Install Add-on From File
- Select the ModHeader ZIP file from step 1. ModHeader is now installed on your browser.