1. You're going to click on the 3 dots on the top right.
2. Then click on bookmarks and lists.
3. After that, click (Bookmark bars) and click always show.
4. Finally, get your extracted Index.html file and drag it onto the bookmarks bar you just turned on.

Usually it's one of these:

• Make sure you extracted the whole file. How? Go to your downloads folder, left click once on MKUBG, and on the top click extract all.
• Sometimes I mess up so I'm sorry.
• The game might not be up to date, js lmk if I need to fix a game or 2.
• If this doesn't help idrc.