Latest Version:
1.1 Updated:
4 months ago
Ready to install?
CoolClaude is available to install from Firefox Add-ons Store and for download from this page.
6
Daily users
No ratings yet
0
Total downloads
Available versions
You can find the current and older versions of CoolClaude 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 |
|---|---|---|---|---|
| 1.1 | XPI · ZIP · Source code | 36.85KB | 0 | 2026-03-06 |
| 1.0 | XPI · ZIP · Source code | 36.64KB | 0 | 2026-02-24 |
1.1 36.85KB
1.0 36.64KB
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 CoolClaude ZIP file.
- In Firefox browser, go to
about:addonsto open Add-ons Manager - Click on ⚙, Install Add-on From File

- Select the CoolClaude ZIP file from step 1. CoolClaude is now installed on your browser.
Best CoolClaude Alternatives
Here are some Firefox add-ons that are similar to CoolClaude:
Claude.ai OLED Dark Full black
Dodo
Claude OLED Dark real black
Dodo
Claude Dark
Nes
Claude Themes
clausqr
Claude Usage
myurk
Claude-y
Andrew
Claude Light
Nes
Thinking Claude
Richards Tu
Custom Twitch chat color-d
dexzar
Claude Sidebar Modifier
cyanheads
Claude Usage Bar
apolonia
Ask Claude
jackcamp