Download Open Headers
Download Open Headers (current and past versions) for Firefox
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Try xHeader →
Latest Version:
2026.9.0 Updated:
2 days ago
Ready to install?
Open Headers is available to install from Firefox Add-ons Store and for download from this page.
3
Daily users
2 ratings
0
Total downloads
Available versions
You can find the current and older versions of Open Headers 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 |
|---|---|---|---|---|
| 2026.9.0 | XPI · ZIP · Source code | 6.38MB | 0 | 2026-09-04 |
| 2026.8.2 | XPI · ZIP · Source code | 5.94MB | 0 | 2026-08-20 |
| 2026.7.11 | XPI · ZIP · Source code | 5.71MB | 0 | 2026-07-21 |
| 2026.7.10 | Paid users only | 5.71MB | 0 | 2026-07-21 |
| 2026.7.8 | Paid users only | 4.41MB | 0 | 2026-07-17 |
| 2026.7.7 | Paid users only | 4.23MB | 0 | 2026-07-14 |
| 2026.7.4 | Paid users only | 4.04MB | 0 | 2026-07-10 |
| 2026.7.2 | Paid users only | 4.05MB | 0 | 2026-07-09 |
| 2026.7.1 | Paid users only | 4.00MB | 0 | 2026-07-07 |
| 2026.7.0 | Paid users only | 3.86MB | 0 | 2026-07-04 |
| 2026.6.4 | Paid users only | 3.83MB | 0 | 2026-06-30 |
| 2026.6.3 | Paid users only | 3.83MB | 0 | 2026-06-29 |
| 2026.6.1 | Paid users only | 3.83MB | 0 | 2026-06-29 |
| 2026.6.0 | Paid users only | 3.82MB | 0 | 2026-06-24 |
| 2026.5.0 | Paid users only | 3.82MB | 0 | 2026-06-19 |
| 4.1.4 | Paid users only | 764.81KB | 0 | 2026-04-04 |
| 3.2.0 | Paid users only | 579.14KB | 0 | 2026-03-18 |
| 2.1.0 | Paid users only | 428.94KB | 0 | 2025-06-03 |
| 2.0.0 | Paid users only | 427.89KB | 0 | 2025-05-28 |
| 1.5.0 | Paid users only | 52.04KB | 0 | 2025-05-18 |
| 1.4.0 | Paid users only | 50.28KB | 0 | 2025-05-16 |
| 1.3.0 | Paid users only | 48.25KB | 0 | 2025-05-01 |
| 1.1.0 | Paid users only | 58.78KB | 0 | 2025-04-24 |
2026.9.0 6.38MB
2026.8.2 5.94MB
2026.7.11 5.71MB
2026.7.10 5.71MB
Paid users only
2026.7.8 4.41MB
Paid users only
2026.7.7 4.23MB
Paid users only
2026.7.4 4.04MB
Paid users only
2026.7.2 4.05MB
Paid users only
2026.7.1 4.00MB
Paid users only
2026.7.0 3.86MB
Paid users only
2026.6.4 3.83MB
Paid users only
2026.6.3 3.83MB
Paid users only
2026.6.1 3.83MB
Paid users only
2026.6.0 3.82MB
Paid users only
2026.5.0 3.82MB
Paid users only
4.1.4 764.81KB
Paid users only
3.2.0 579.14KB
Paid users only
2.1.0 428.94KB
Paid users only
2.0.0 427.89KB
Paid users only
1.5.0 52.04KB
Paid users only
1.4.0 50.28KB
Paid users only
1.3.0 48.25KB
Paid users only
1.1.0 58.78KB
Paid users only
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 Open Headers ZIP file.
- In Firefox browser, go to
about:addonsto open Add-ons Manager - Click on ⚙, Install Add-on From File
- Select the Open Headers ZIP file from step 1. Open Headers is now installed on your browser.
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