You can also try these related scripts:

• Bundle Helper Reborn - Marks owned/ignored/wishlisted games on several sites, and also adds a button to open the steam page for each game.
• Enter to Win! - Show button "Enter to Win!" in homepage
• steamgifts.com shortcut keys - Adds helpful keyboard shortcut keys to steamgifts.com
• SteamGifts: Hide joined and perform auto paging - Implements auto paging feature for SG and hides all joined giveaways. Also attempts to replicate Easy SteamGifts Join button if ESG installed.
• SteamGifts Helper - In SteamGifts, improve some features