Wyrd for Firefox is on Firefox Add-ons. Visit this site in Firefox and it shows ! wherever it says >.
What differs
| Chrome | Firefox | |
|---|---|---|
| The prefix in the address bar | > gh | ! gh: Firefox keeps > for its own Actions search. Wyrd's pages and messages show ! by themselves. |
| Without a prefix | Wyrd as a search engine, set up once (Optional setup) | The same, in Firefox's search settings |
| Tab bundles at the side | The side panel | The sidebar (the same page, in Firefox's own place for it) |
| Google Sheet backup and sync | Chrome's own Google sign-in | Google's sign-in in a window Wyrd opens; the same one permission, the files Wyrd makes in your Drive |
| Before anything is sent out | Chrome asks for the permission | Firefox also asks for your consent to "data collection" for that feature: Google Sheet, Define. It goes only where you chose, never to the developer. |
| Define & translate | Define and Translate | Define only: Firefox has no translator open to extensions |
| Automatic backups to a folder | Yes | No: Firefox has no folder picker for extensions. Back up now still saves the same file. |
| Private windows | Allow in Incognito, on chrome://extensions | Run in Private Windows, in the add-on's settings |
| Lists set by an organisation | Chrome policy | Firefox's enterprise policies (policies.json) |
| Your 10 most recent tab bundles follow you | Through Chrome sync | Through Firefox Sync |
| Versions | Desktop Chrome 116 or later | Desktop Firefox 140 or later (not Firefox for Android: it has no extension keywords in the address bar) |
Everything else is the same: keywords and searches, aliases, sub-keywords, shared lists, tab bundles and their commands, the Keywords page, reminders, starter packs, backups, and the privacy of it all. Your keywords do not move between the two browsers by themselves: Back up now in one and Restore from a file in the other, or the same Google Sheet in both.
Why it is one Wyrd
Both stores get the same code, file for file; only the small file that tells each browser what the extension is differs (the prefix, the sidebar, the add-on's name in Firefox). Where the browsers differ, Wyrd asks which one it is running in and takes that browser's way. So a feature or a fix reaches both at once, the same tests check both, and Firefox's reviewers read exactly the code you run. A browser's checker may point at the lines meant for the other browser; they are never run there.
This site is written for Chrome. Visit it in Firefox and it shows ! where it says >; screenshots and videos show Chrome. Every command with the permission it needs: the cheat sheet. Every permission and request: permissions and data.