Maybe this helps you 
Sort of add-on to exclude the games/dlcs you don't want:
chrome.google.com
addons.mozilla.org
Sort of add-on to exclude the games/dlcs you don't want:
Chrome Web Store
Add new features to your browser and personalize your browsing experience.
chrome.google.com
IndieGala Helper – Adoptez cette extension pour 🦊 Firefox (fr)
Télécharger IndieGala Helper pour Firefox. Bundles: Shows which games are already in your library. Giveaways: Shows which games are already in your library. Replaced "Read More" with link to games steam