SteGOG
Display games owned on Steam in GOG
SteGOG: Steam Games on GOG
SteGOG is a Firefox add-on that adds an indicator on GOG.com to let you know if you own a game on Steam. Simply enter your steamID64 on the add-on's settings page or on GOG.com homepage to get started.
Add-on stats
Weekly download count: 2
Firefox on Android: Yes
Risk impact: Moderate risk impact 
Risk likelihood:
Manifest version: 2
Permissions:
- *://api.steampowered.com/*
- *://api.isthereanydeal.com/*
- storage
Size: 98.25K
Email: ug*****@gmail.com
URLs: Website
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Add-on summary
Adds an indicator on gog.com, which will let you know if you own a game on Steam.
You will need to get your steamID64 (to obtain enter your username here https://steamid.io/ or use any other convinient method). Once you have it you can paste it either on the addon's settings page or on gog.com homepage into an ugly input at the top-left of your screen (should appear after you install the extension).
User reviews
Not working as of 2024-05-05. Thx for trying though.
by 75338, 2024-05-06
This addon does not appear to work anymore with the current GOG website.
by SkeletonBow, 2024-04-12
Completely non-functional for me. Installed, entered Steam ID, saved, and nothing. Restarted, confirmed correct Steam ID, nothing. Looked at GoG.com pages for multiple games owned on Steam, nothing. Even tried disabling and reinstalling the mod and nothing. No icons, no errors, no sign that it functions at all. Disabling uBlock and NoScript don't alleviate the issue either.
by Firefox user 17457944, 2022-06-19
Add-on safety
Risk impact
SteGOG requires a few sensitive permissions. Exercise caution before installing.
Risk likelihood
SteGOG is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.
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