Firefox and Chromium no longer build for armhf, however we get mailed “X contains outdated Ubuntu packages” for that architecture:
Revision r7459 (armhf; channels: esr/stable, esr/candidate, esr/beta, esr/edge)
- libcurl4: 8670-2
Revision r7478 (armhf; channels: stable, candidate)
- libcurl4: 8670-2
Revision r7521 (armhf; channels: beta)
- libcurl4: 8670-2