Comment 16 for bug 1672698

Ok, I fixed it. I did a huge bulk install of fonts using your "in home but not in workstation" list, and it fixed the issue, at least for Youtube anyway. Here is the list of what did install. I do know that Youtube use the roboto font, which is on this list, but I did not test a separate install, though. Can you try it ?

Installed fonts :

fonts-3270
fonts-aoyagi-kouzan-t
fonts-aoyagi-soseki
fonts-arabeyes
fonts-arphic-ukai
fonts-arphic-uming
fonts-beng
fonts-beng-extra
fonts-cabinsketch
fonts-century-catalogue
fonts-circos-symbols
fonts-cmu
fonts-cns11643-kai
fonts-cns11643-sung
fonts-cwtex-docs
fonts-cwtex-fs
fonts-cwtex-heib
fonts-cwtex-kai
fonts-cwtex-ming
fonts-cwtex-yen
fonts-dancingscript
fonts-dejima-mincho
fonts-deva
fonts-deva-extra
fonts-dosis
fonts-farsiweb
fonts-freefarsi
fonts-gargi
fonts-gubbi
fonts-gujr
fonts-gujr-extra
fonts-hack-otf
fonts-hack-ttf
fonts-hack-web
fonts-humor-sans
fonts-indic
fonts-ipaexfont
fonts-ipafont
fonts-johnsmith-induni
fonts-junction
fonts-kalapi
fonts-knda
fonts-lohit-beng-assamese
fonts-lohit-beng-bengali
fonts-lohit-deva
fonts-lohit-gujr
fonts-lohit-knda
fonts-lohit-mlym
fonts-lohit-orya
fonts-lohit-taml
fonts-lohit-taml-classical
fonts-lohit-telu
fonts-maitreya
fonts-mikachan
fonts-mlym
fonts-moe-standard-kai
fonts-moe-standard-song
fonts-mononoki
fonts-nakula
fonts-nanum-extra
fonts-navilu
fonts-orya
fonts-orya-extra
fonts-pagul
fonts-roboto
fonts-rufscript
fonts-sahadeva
fonts-samyak-deva
fonts-samyak-gujr
fonts-samyak-mlym
fonts-samyak-taml
fonts-sarai
fonts-smc
fonts-taml
fonts-telu
fonts-telu-extra
fonts-ubuntu-font-family-console
fonts-ukij-uyghur
fonts-vlgothic
fonts-vollkorn
fonts-wqy-zenhei