You can expect to see more and more of this as most of the world converges on the Chromium browser base. There is very little incentive for these companies to test for Firefox. Device users have spoken. They do not bother to change the defaults that come with their devices (Chrome, Edge, Safari) and do not really care about the deeper aspects of privacy or control or FOSS. At most they care about blocking ads, which…
The sad thing is that we've lived through all of this with Internet Explorer. I'd be willing to be that we will once more when Chrome stagnates and something bigger and better comes along...
IE was overtaken by FF at a time when there was less complexity in browsers and MS wasn't really into the sort of feature-racing that's happening today; Google has already achieved an effective monopoly-by-complexity with its control over web standards and constant churn and feature addition under that "push the web forward" excuse. It has used its resources to make a moving target and keep it moving, making it impossible for others to even try to catch up. MS tried with Edge and gave up.
I really don't like this, because unless the population manages to change its viewpoint completely and think "better" is not "bigger", I highly doubt Chrome will ever "stagnate".