NO LONGER BEING MAINTAINED. I can't keep up with the changes in Gmail. Feel free to create your own version of this extension using my code (https://github.com/JeromeDane/Gmail-Signatures), but please give credit to my work with a link.
Blank Canvas Signatures for Gmail
This project is developed and maintained as a hobby by Jerome Dane. Please remember that all other “real life” obligations must come first. I’d rather be at the pool with my family than fixing bugs in software I write and distribute for free.
Google frequently changes the code and layout of Gmail, so this project may be abandoned or fall into disrepair at any time, but you can show your support and help keep it going by Donating through PayPal. ♥