Top Browser URLs and Top Browser Domains Extension doesn't work with Zen Browser

- [X] I am on the [latest](https://github.com/ActivityWatch/activitywatch/releases/latest) ActivityWatch version.
- [X] I have searched the issues of this repo and believe that this is not a duplicate.

- **OS name and version**: MacOS Apple M3 Sequoia 15.2
- **ActivityWatch version**: Version: v0.13.2

## Describe the bug
The App Activity Watch application fails to track browser activity on Zen Browser. The application does not log or display any activity from this browser, making it ineffective for users who rely on Zen Browser for browsing.

## To Reproduce
1. Install and launch the App Activity Watch application (Version: [insert version here]).
2. Open Zen Browser (Version: 1.0.2-b.5 (Firefox 133.0.3) (aarch64)).
3. Visit multiple websites and navigate between tabs.
4. Check the activity log in App Activity Watch.

## Expected behavior
The App Activity Watch application should log all browsing activity from Zen Browser, including visited URLs and domains, similar to how it functions with other supported browsers.

## Documentation