Wide GitHub

Wide GitHub is a browser extension that makes GitHub’s layout wide, enhancing readability, reducing vertical scrolling, and improving accessibility.

It works on GitHub, private Gists, GitHub Enterprise, and custom TLDs (Firefox 127+ and Chrome Manifest V3 supported).

• Makes GitHub's layout wide and accessible.
• Supports custom domains (e.g. GitHub Enterprise).
• Toggle on/off with a single click.
• Syncs settings across devices (Firefox Sync / Chrome Sync).
• Handles SPA navigation and tab switches.
• Easy preferences and URLs management via settings popup.

1. Visit Wide GitHub for Firefox
2. Click "Add to Firefox"
3. Confirm the installation

1. Visit Wide GitHub for Chrome
2. Click "Add to Chrome"
3. Confirm the installation

1. Click the extension icon in your browser's toolbar
2. Toggle the switch to enable/disable the wide layout
3. Add custom domains in the popup if needed

You can add custom domains where you want the wide layout to be applied:

1. Click the extension icon
2. Enter the domain in the input field (e.g., git.mycompany.com)
3. Click "Add" or press Enter
4. Confirm the browser's permission request for that domain

Access to each custom domain is optional and is requested only when you add it; removing a domain from the list also revokes the permission. If the browser closes the popup to show the permission request, just reopen it: the domain is already in the list. If a domain shows a ⚠ button (e.g. after an update, a declined permission, or a settings sync to a new device), click it to grant the permission again.

The extension will automatically handle:

• Subdomains (e.g., docs.github.com)
• WWW redirects (e.g., www.github.com)
• Protocol changes (http/https)

All source code is in the src/ folder and is shared between Chrome and Firefox builds.
Manifest files are separate for each browser.

If you just cloned the repository, make the build scripts executable:

chmod +x build.sh package.sh

To build the extension for both browsers:

./build.sh

This will generate the folders dist/firefox and dist/chrome with the ready-to-use extension files.

To create ZIP files for release (excluding system and dev files):

./package.sh

This will create wide-github-firefox.zip and wide-github-chrome.zip in the project root, ready for upload to the stores.

This project is licensed under the MIT License - see the LICENSE file for details.

For details about how Wide GitHub handles your data and permissions, please see the Privacy Policy.

3.5.0

• Reworked the permissions model: the extension no longer requests access to all websites at install time. Access to custom domains is now optional and requested only when you add a domain, and is revoked when the domain is removed.
• Custom domains now activate immediately on already-open tabs, without requiring a page reload.
• Popup: added a ⚠ button to re-grant a missing domain permission (e.g. after an update or syncing settings to a new device).
• Popup: the current-domain section is now shown only when the site is not yet supported. Also improved accessibility (keyboard focus and ARIA labels) and dark mode contrast.
• Fixed domain-matching false positives (e.g. notgithub.com no longer matches *.github.com).
• Fixed the flicker-prevention CSS, which was not being applied, and a MutationObserver stacking issue.
• Performance: throttled layout updates and removed dead code. Custom domains now require Firefox 127+.

3.4.0

• Fixed PR discussion content wrapper (Issue 40, thanks to @e1four15f).
• Popup now displays current domain status with quick-add button for unsupported domains.
• Fixed storage to ensure wide layout settings are fully loaded before applying styles.

3.3.3

• Fixed repository code page width (Issue 37, thanks to @mxgic1337).

3.3.2

• Improved compatibility with discussions and repository settings pages (Issue 36, thanks to @mxgic1337).

3.3.1

• Support July 2025 layout (Issue #35, thanks to @AetherUnbound).

3.3.0

• Unified codebase for Firefox and Chrome.
• Removed outdated background script.
• Added universal API wrapper for cross-browser compatibility.
• Implemented a CSS fix to prevent accidental application on non-GitHub sites.
• Improved flickering issue on first load.
• Introduced some automation in building and packaging.
• Added Chrome Web Store links and mentions.

3.2.0

• Fixed real-time update of wide layout on custom domains.
• Improved messaging and domain handling logic.
• Optimized CSS and code structure for maintainability.
• Settings popup UI revamp, with dark mode support.

3.1.0

• Improved CSS compatibility with the new GitHub layout.
• Fixed flickering issue when switching between tabs.
• Improved URL and page navigation.
• General CSS refactoring and JS performance optimization.

3.0.0

• Extension re-built from the ground up with native Manifest V3 support.
• Added support to custom TLDs (Issue #12).
• Introduced settings panel to easily enable and disable the wide layout, and handle custom TLDs.

2.5.0

• Support GitHub Gist (PR #27—closes issue #23, thanks to @mxgic1337).

2.4.0

• Support evolved GitHub issues (Issue #25, thanks to @AetherUnbound).

2.3.0

• Improved support for the "Blame" view (Issue #21).
• Minor fixes and general CSS tweaks.

2.2.0

• Support new UI and the updated code panel (Issue #19).

2.1.0

• Added toggle button on the Firefox toolbar, so that Wide GitHub can now be enabled or disabled on specific pages (Issue #7 and Issue #15).
• Fixed an issue that caused the comment dialog box on pull requests to be wider than the screen in some circumstances (Issue #16).
• Improved support for dark mode.

2.0.0

• Add-on CSS code complete refactoring.
• Support the new GitHub design released in 2020 (Issue #8, Issue #10 and Issue #11).
• Initial support for GitHub Enterprise (Issue #5, thanks @henrik242).
• Instead of using breakpoints, Wide GitHub now makes the page content always fit your screen width. No matter the display size (Issue #9).

1.2.0

• Native support for extra large displays (Issue #4).
• Several improvements to the CSS code.

1.1.0

• Support for private GitHub domains (Issue #1).
• Project views have been excluded. Wide GitHub should not be enabled there (Issue #2).
• Fixed bigger-than-expected images in user detail view. (Issue #3).

1.0.1

• Minor changes.

1.0.0

• Initial release.