Thunderbird
Install Thunderbird email signatures with a branded, cross-client HTML output—no coding required.
What you get
- • Install Signaturely signatures for your selected email client
- • Personalize your branding with logo, social icons, and styling
- • Export / copy your final signature HTML
Available platforms
More integrations
Explore other email signature integrations.
How to add an email signature in Thunderbird
Setting up a professional email signature in Thunderbird takes just a few minutes with Signaturely. Build your signature with our free generator — add your logo, social icons, contact details, and brand colors — then copy the ready-made HTML and paste it into Thunderbird’s signature settings. The result renders correctly in MacOS, Windows and stays consistent across every message your team sends.
Because Thunderbird handles HTML signatures natively, you don’t need any plugins or technical setup. Everything is embedded in a single block of table-based HTML that survives forwarding, replies, and dark-mode rendering.
Step 1 — Generate
Use the Signaturely generator to design your signature: name, role, logo, social icons, and banner. Live-preview as you type.
Step 2 — Copy HTML
Export or copy the generated HTML with one click. The markup is table-based and email-client safe, ready for Thunderbird.
Step 3 — Paste & send
Paste it into Thunderbird’s signature settings, save, and send yourself a test email to confirm spacing and images.
Thunderbird email signature — FAQ
Is the Thunderbird email signature free?
Yes. Signaturely's email signature generator is free to use. Design your signature, export the HTML, and install it in Thunderbird yourself — no paid plan required for the generator itself.
Will my Thunderbird signature work on mobile and desktop?
Signatures generated with Signaturely are responsive table-based HTML, so they render correctly in MacOS, Windows and adapt to the width of the reading pane on both desktop and mobile.
Can I include my company logo and social icons in Thunderbird?
Absolutely. The generator supports logo uploads, social media icons, banners, custom colors, and fonts — everything is embedded in the HTML you paste into Thunderbird.
How long does it take to install a signature in Thunderbird?
Most users finish in under 5 minutes: generate the signature, copy the HTML, paste it into Thunderbird's signature settings, and send yourself a test message to confirm the formatting.