Download Terror
Download Terror (current and past versions) for Firefox
Terror is available for download. It had 1 daily users before it was removed from Firefox Browser Add-ons on 2025-04-21, and it has been downloaded from Firefox-Stats 0 times. Be careful when installing it.
Total download count: 0 (Only count downloads from Firefox-Stats)
Available versions
You can find the current and older versions of Terror 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 |
|---|---|---|---|---|
| 2.0 | XPI · ZIP · Source code | 138.20K | 0 | 2025-03-14 |
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 Terror 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 Terror ZIP file from step 1. Terror is now installed on your browser.
Similar add-ons
Here are some Firefox add-ons that are similar to Terror:
