Latest Version:
2.0 Updated:
7 years ago Removed
Ready to install?
that summer is available for download. Be careful when installing it.
Available versions
You can find the current and older versions of that summer 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 | 121.31KB | 0 | 2019-05-13 |
2.0 121.31KB
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 that summer ZIP file.
- In Firefox browser, go to
about:addonsto open Add-ons Manager - Click on ⚙, Install Add-on From File

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