Unfavorite removed screenshot/artwork that get stuck

Entire purpose of this guide is to show one method of removing removed content from your favorited screenshots/artworks page in case it gets stuck.
Also works for workshop pages.

New method (Credits to iriyap)

• Get a browser that lets you use the javascript console (Firefox works)
  
• Login to Steam, open any screenshot/artwork.

1. Right-click and click Inspect element
   
2. Here all you need to do is click on the Console tab
   
3. Copy the following command
   

   $J.post( 'https://steamcommunity.com/sharedfiles/unfavorite' , {
   'id' : 000000000,
   'appid' : 000000,
   'sessionid' : g_sessionID
   });

4. At the bottom of the Inspect element/Developer tools window, paste in the command
   
5. Replace the 'id' number, with the id of the screenshot or artwork that is stuck
   
6. Replace the appid number, with the appid of the game
   
7. Press enter, should unfavourite the image.

Different methods for getting the appid

• Use store page to search for the game.
  
• In your favourited screenshot/artwork page, use the Filter by game function (the button is below your username and the tabs for Screenshots/Artwork/Videos/etc. buttons), select the game you want to unfavourite from, and then check the url for appid
  
• Use the element picker in the Inspect element window (button in top left corner), and select the stuck screenshot/artwork, the appid should be in the parent <a> tag of the highlighted html tag (which should be a <div>, whose parent is a <div>, whose parent is the <a> tag in question)

The 2 last methods can be useful for when the game in question is a source mod or an off-steam game.

Old method, even though the above should work.

• Get a browser that lets you edit and send network requests (Firefox works)
  
• Login to Steam, open any screenshot/artwork you don't have favorited in new tab.

1. Right-click and click Inspect element
   
2. Here all you need to do is click on the Network tab
   
3. Now while this tab is open, click to favorite a screenshot/artwork, and unfavorite it.
   
   
   
   
   
4. Click on the POST unfavorite
   
5. Click on Edit and Resend
   
6. Copy over all the info from the request to Notepad (all 4 text boxes)
   
   
   
   
   
7. Open the screenshot/artwork that is stuck on your favorites in new tab, copy it's ID
   
8. Replace both IDs in Notepad (also make sure the appid is correct for the game), also open the Network tool on this page
   
   
   
   
   
   
   
9. Click on any of the requests, and click Edit and Resend
   
10. Copy all the text over to the correct fields from your Notepad
    
11. Press Send

Done!

If it didn't work, you should try removing the Cookie: line completely.

[DragonLover]

Thank you so much! This helped me out a ton!

[jahlis]

Jesus, this is such an oversight on Steam's part. had one lewd artwork favourited and there was no other way to get rid of it. thanks a lot, man!

[FeyzullaH'S]

do it on steam mobile app.
steam mobile app working for unfavorite button.
thank me later

[FeyzullaH'S]

do it on steam app.
steam app working for unfavorite button.
thank me later

[Ghillie]

It works for me, thank you very much. I'll give an award to your guide.

[nikky ♡]

if you have trouble finidng the appid, just set it to o

[Nickolox]

thank you so much, i've had broken artworks/screenshots in my favourites for YEARS and it is so good to finally get rid of them

[BlatheringTumorCells]

The exact same method should work for workshop items as described in the guide.

[Blurred]

Is there any method but for bugged workshop items?

[Aevoa]

i love how steam is so broken it needs guides to fix it