In the autopkgtest infrastructure, on armhf the UA string is:
Mozilla/5.0 (X11; Ubuntu; Linux armv7l; rv:88.0) Gecko/20100101 Firefox/88.0
i.e. the difference with my tests in an armhf container is the architecture ("armv7l" vs "armv8l")
In the autopkgtest infrastructure, on armhf the UA string is:
Mozilla/5.0 (X11; Ubuntu; Linux armv7l; rv:88.0) Gecko/20100101 Firefox/88.0
i.e. the difference with my tests in an armhf container is the architecture ("armv7l" vs "armv8l")