A minimalist UI enhancement that removes borders and gaps, creating a cleaner, edge-to-edge look for your browser — perfect for split-screen mode and maximizing screen real estate. This is really a golden mod for you guys to use to have a seemless and minimal look that you like.
- Waiting for recommendations and bug reports
Click to see the Previews
No-Gaps focuses on:
- Eliminating borders and visual clutter
- Creating a seamless, modern interface
- Enhancing multitasking efficiency on smaller or split displays
This mod is proudly published by Vertex — your home for high-quality Firefox mods.
🔗 Sine Mod Manager: https://github.com/CosmoCreeper/Sine
- Go to
about:configand search fortoolkit.legacyUserProfileCustomizations.stylesheets, then set it totrue. - Download and install Sine.
- Open the Sine Mod Manager and search for No-Gaps.
- Click Install — that’s it!
This method automatically handles setup and updates for you.
- Go to
about:configand search fortoolkit.legacyUserProfileCustomizations.stylesheets, then set it totrue. - Download the latest release of No-Gaps from this repository.
- Open
about:profilesin Firefox. - Under your profile, click “Open Folder” which the folder path says Roaming in between.
- Inside that folder, open the
chromedirectory (create one if it doesn’t exist). - Place the mod files inside the
chromefolder. - Create a new file called
userChrome.css. - Open a notepad or any editor and add this code
@import url("./No-Gaps-<put the version number said in the folder>/style.css"); - Open
about:configand search forno-gap.mode-selectand click add button with number option selected and then set it to0(Compact Mode Only) or1(Both Compact and Non-Compact Mode). - Search for
no-gaps.remove-split-highlightand click add button with boolean checked and then set it totrue(to remove highlight when in split mode) orfalse. - Search for
no-gaps.remove-box-shadowand click add button with boolean checked and then set it totrue(to remove shadow emitted to the sidebar from the website border around) orfalse. - If you don't get how to do it just see the bottom image.
Example image of setting up a config:
- Set the selection whether boolean, number or string
- Click create button to the right
- If you need any help or encounter a bug, please don’t hesitate to reach out.
- You can contact us through Discord or by creating an issue on GitHub.
- If you have a suggestion or feedback, we’d love to hear it!
- You can DM or ping me on Discord, or submit your suggestion as a GitHub issue.
- Publisher: Vertex Mods
- Mod Manager: Sine
- Owner: CompTechGuy
Clean. Minimal. Efficient. Productive. Real Estate. — No-Gaps.



