Breathe 
A Firefox webextension to remind you to breathe, or anything else.
Inspired by a friend's homepage, this extension shows you a simple message of your choice every time you open a new tab. You can create a list of messages that the extension will randomly choose from. You can also change the colors and fonts of the message.
Screenshots
| Chrome (default) | Firefox | Firefox |
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Settings
| Chrome | Firefox |
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Install
Use the links on top for the quick install. To use the source, clone this repository and load it manually via about:debugging on Firefox, or chrome://extensions/ on Chrome.