https://github.com/ScanuNicco/Modern-ThunderBird

A userChrome.css theme to make thunderbird resemble Firefox 89+
https://github.com/ScanuNicco/Modern-ThunderBird

Last synced: 13 days ago
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A userChrome.css theme to make thunderbird resemble Firefox 89+

• Host: GitHub
• URL: https://github.com/ScanuNicco/Modern-ThunderBird
• Owner: ScanuNicco
• Created: 2021-11-04T00:15:22.000Z (about 3 years ago)
• Default Branch: main
• Last Pushed: 2022-12-08T04:41:00.000Z (almost 2 years ago)
• Last Synced: 2024-08-01T16:36:47.025Z (3 months ago)
• Language: CSS
• Size: 1.15 MB
• Stars: 17
• Watchers: 1
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Modern-ThunderBird

A userChrome.css theme to make Thunderbird (78+) resemble Firefox 89+

![image](https://user-images.githubusercontent.com/30136040/206086881-d2111947-a77f-4e48-88bb-f314cfc51366.png)

*Updated tabs and toolbar*

![Updated dropdown menus](Screenshots/screen2.webp)

*Updated dropdown menus*

![image](https://user-images.githubusercontent.com/30136040/206356800-68260b43-7428-432e-a474-a77703f36c0b.png)

*Works with dark theme*

![image](https://user-images.githubusercontent.com/30136040/206357038-4cdaf307-16bf-46d5-b653-b8465fd1b870.png)

*Works with light theme*

![image](https://user-images.githubusercontent.com/30136040/206357203-8833fc4d-4542-43d1-be31-5ac843bc5df7.png)

*Works with custom themes (also URL bar is fixed)*

## Installation

1. Download the file named userChrome.css from this repo.

2. Open Preferences and scroll all the way to the bottom of the General tab.

3. Click `Config Editor...`

4. A dialog will warn you, but ignore it, press the `I accept the risk!` button.

5. Enable the following flags by right clicking and selecting toggle:

	+ **`toolkit.legacyUserProfileCustomizations.stylesheets`**

5. Go to your Thunderbird profile.

	+ Linux - `$HOME/.thunderbird/XXXXXXX.default-XXXXXX`.

	+ Linux (Flatpak) - `$HOME/.var/app/org.mozilla.Thunderbird/.thunderbird/b96p321h.default-XXXXXX`

	+ Windows 10 - `C:\Users\\AppData\Roaming\Thunderbird\Profiles\XXXXXXX.default-XXXXXX`.

	+ MacOS - `Users//Library/Thunderbird/Profiles/XXXXXXX.default-XXXXXXX`.

6. Create a folder and name it **`chrome`**, then copy `userChrome.css` from step 1 to `chrome` folder.

7. Restart Thunderbird.

## Other Settings

You may notice that your thunderbird doesn't quite look like the first screenshot. To fix this, go to Menu > View > Density and set it to "Touch". Then change the font size to 12px

## End of Useful Life

You might have heard about the upcoming release of [Thunderbird Supernova](https://blog.thunderbird.net/2022/11/thunderbird-supernova-preview-the-new-calendar-design/) some time in 2023. Based on the screenshots, it seems like it may do away with tabs all together, so this theme may no longer serve much of a purpose after that point.