I was under the impression that Thunderbird is on life support, while Blender is everywhere.
Fore More recent numbers: In 2024[1] (last info I found), Blender had 3.1m € in donations (600k more than the year before) and Thunderbird had around 9m € [2].
I kind of get it, Blender is way more niche than Thunderbird, but imagine what they could do with even more money.
[1] https://download.blender.org/foundation/Blender-Foundation-A... on page 76 [2] https://blog.thunderbird.net/2025/10/state-of-the-bird-2024-... I did the money conversion based on today's exchange rates
Is that true though? I mean sure, more people use email - but I would guess there are more Blender users than Thunderbird users in the world.
There's plenty of competition for an excellent free email experience. Very little for 3D modeling software.
Update: Looks like I guessed wrong. I found some approximate user numbers:
Thunderbird has analytics that show around 10 million active daily installations: https://stats.thunderbird.net/
Blender stats are harder to find. They reported 23 million total downloads in 2024, which suggests daily actives significantly lower than 10 million: https://download.blender.org/foundation/Blender-Foundation-A...
Quite potentially some really great stuff, but I’m skeptical that this is actually a great way to kill a good thing. Ideally money isn’t an issue and everyone is paid well, and somehow the organization managers know how to feel out and draw a line on scale/ambitions.
It just goes to show you how badly managed Thunderbird is, since Blender is doing so much more with the money. I'm more and more disappointed with Mozilla all the time.
Since hacking on a 3D DCC in your spare time may be more than three times as enticing to people than doing the same on an email client?
I'd wager Occam's razor favors this explanation.
but still, they were open sourced about 1 year apart. I still think having a bigger user base is a good reason for the difference
It's come an absurdly long way since I first dabbled with it in the early 2000s, and has gone from a niche FOSS tool to something widely used in its field.
Nowadays, Blender is an example of masterful UX for a professional tool. Immediately responsive, information dense UI with keyboard shortcuts for absolutely everything. Actions are composable, like with vim: something like "ex5" will extrude five units on the x axis.