FitEdit is a training data manager that keeps a local database of all your workouts. Learn more at https://www.fitedit.io/
The FitEdit browser extension is optional and enables extra features in FitEdit. It syncs your cookies on fitness sites like Garmin Connect to the app so that you can download, edit, and upload activity files from within the app. Learn more at https://www.fitedit.io/support/garmin-signin.html
Available as a zips or on the Chrome Web Store and FireFox Add-Ons. More instructions are on the support page.
https://releases.fitedit.io/browser/extension/chrome.zip
https://releases.fitedit.io/browser/extension/firefox.zip
https://addons.mozilla.org/en-US/firefox/addon/fitedit-training-data-manager/
https://chromewebstore.google.com/detail/fitedit-training-data-man/bfhphpljoncaiamnglpmlcaopgpclmal