In debian/watch no matching files for watch line https://addons.mozilla.org/en-US/firefox/addon/umatrix/versions/ .*/umatrix-(\d[\d\.]+)-.*\.xpi\?src=.*
There is 1 open security issue in sid.
commit 3278f251d8317dad95f97509f40667bfd5f9009e Author: Ximin Luo <infinity0@debian.org> Date: Sun Nov 15 22:47:44 2020 +0000 update d/watch
There is 1 open security issue in buster.
You can find information about how to handle this issue in the security team's documentation.