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OmniReply

Generates draft email replies with AI right inside Thunderbird, using your V4 account and your Cover Playground links.

Download latest
Current version: latest
Tip: save the file — don't open it in the browser.
How to install (about 5 minutes)
1

Download the add-on

Click Download latest above and save omnireply-latest.xpi somewhere you can find it (e.g. Downloads). Requires Thunderbird 140 or newer.

2

Get your V4 API key

Open v4.vdm-vsg.de, go to Account, and copy the API key shown below your signatures. Keep it handy — you'll paste it in step 5.

V4 account page showing the API key below the signature area
V4 → Account → the API key just below your signature area.
3

Allow internal add-ons (one-time)

This add-on is distributed internally, so it isn't signed by the public add-on store. You only need to do this once.

It only affects unsigned installs; signed add-ons still work as before.
  1. Thunderbird menu → Settings (on Windows/Linux: the ☰ menu).
  2. General → scroll to the bottom → Config Editor… (accept the warning).
  3. Search signatures.required → double-click xpinstall.signatures.required so it reads false.
Thunderbird menu with Settings highlighted
a. Open Thunderbird Settings.
General settings page showing the Config Editor button
b. In General, scroll down to Config Editor.
Config Editor showing xpinstall.signatures.required set to false
c. This value must read false.
4

Install from file

  1. Tools menu → Add-ons and Themes.
  2. Gear ⚙ (top-right) → Install Add-on From File… → choose the .xpi you downloaded → confirm Add.
Tools menu with Add-ons and Themes highlighted
a. Open Add-ons and Themes.
Add-ons gear menu with Install Add-on From File highlighted
b. Gear menu → Install Add-on From File.
5

Activate OmniReply

Open OmniReply's settings, paste the V4 API key you copied in step 2, and click Test connection — the status should show Ready.

OmniReply settings with the V4 API key field and Test connection button
Paste the V4 API key and test the connection.
6

Add your Cover Playground links

Paste your personal Cover Playground link for each imprint account you handle. OmniReply includes the matching link when a reply should carry your submission link.

OmniReply Personal Cover Playground Links settings with a field per imprint account
One personal link per imprint account.
That's it. Open an email in Thunderbird and click OmniReply to draft a reply — always read it before sending, especially when it includes links, names, prices, or imprint details. New versions install automatically; you won't need this page again.