Thunderbird Email Follow-Up Addon Development

I'm seeking a developer to create a Thunderbird email program addon that automates follow-up sequences. The addon should allow me to click a button to initiate a specific follow-up schedule using automatic emails. The follow-up sequence will be triggered when a specific tag is added to an email.

Key Requirements:
- Develop an addon for Thunderbird to automate follow-up emails.
- Trigger follow-up sequences when a specific tag is added to an email.
- Allow customization of follow-up intervals based on specific tags.
- Enable setup of email templates and selection of sequences.
- Automatically stop follow-up sequence when the client replies or manually stopped by the user.

Ideal Skills and Experience:
- Experience in developing Thunderbird addons or similar email client extensions.
- Proficiency in programming languages suitable for Thunderbird development, such as JavaScript.
- Understanding of email protocols and automation.
- Ability to create user-friendly interfaces for setting up email templates and sequences.
- Strong problem-solving skills and attention to detail.

I'm looking forward to collaborating with a skilled developer who can bring this project to life and enhance my email follow-up process.