Firefox 98.0 (Snap version) does not support Chinese characters. For reference, https://hk.yahoo.com/ is render as
This should be fixable by changing the default font in "Preferences". Unfortunately, no font that support Chinese characters is listed in Settings > Language and Appearance > Font and Colours > Default Font:
I believe the source of the problem is Snap not be able to access the fonts available in the system. How can I fix this?
This is odd. Using the link that you've provided, I'm able to see what appears to be Chinese text with the Snap version of Firefox 98.0.1:
I've looked at my language settings and, while I do have the fonts for English and Japanese, I do not have any for Chinese. The page does load properly, though.
Digging deeper, if you click on the "Advanced" button in the "Language and Appearance" section of the Firefox settings, you'll see the ability to specify specific fonts for different character sets:
Changing the "Fonts for" option to "Simplified Chinese" or "Traditional Chinese (Hong Kong)" may show the same settings as is set for Latin. However, you may see other options that work better for you.
Alternatively, you could uninstall the Firefox snap from your system, then re-install. There is no --reinstall option like with apt, unfortunately.
Edit:
Another option comes from this answer where the fonts-wqy-zenhei font package was installed:
sudo apt install fonts-wqy-zenhei
This may resolve the issue
