Does it display in other browsers or just firefox it isn't displaying properly? You did confirm the font is installed on Ubuntu, too.

This happens if you do not have a font installed that covers this Unicode range.

Firefox will instead show little boxes with the hex code of the character if you do not have a font installed that covers this Unicode range.

• https://en.wikibooks.org/wiki/Unicode/Character_reference/11000-11FFF
• https://en.wikipedia.org/wiki/Tamil_Supplement

You need to install the "Noto Sans Tamil Supplement" font.

• https://github.com/googlefonts/noto-fonts/tree/master/unhinted
• https://github.com/googlefonts/noto-fonts/blob/master/unhinted/NotoSansTamilSupplement/NotoSansTamilSupplement-Regular.ttf

evhenry said

Does it display in other browsers or just firefox it isn't displaying properly? You did confirm the font is installed on Ubuntu, too.

In Opera and in Chromium-Webbrowser my font 11ETTamilSup.ttf is displaed in Ubuntu. This font is installed in /home/.local/share/fonts in Ubuntu 19.10. As written this font 11ETTamilSup.ttf is displayed in Firfox in Windows 10, too.

cor-el said

This happens if you do not have a font installed that covers this Unicode range. Firefox will instead show little boxes with the hex code of the character if you do not have a font installed that covers this Unicode range.

• https://en.wikibooks.org/wiki/Unicode/Character_reference/11000-11FFF
• https://en.wikipedia.org/wiki/Tamil_Supplement

You need to install the "Noto Sans Tamil Supplement" font.

• https://github.com/googlefonts/noto-fonts/tree/master/unhinted
• https://github.com/googlefonts/noto-fonts/blob/master/unhinted/NotoSansTamilSupplement/NotoSansTamilSupplement-Regular.ttf

n Opera and in Chromium-Webbrowser my font 11ETTamilSup.ttf is displaed in Ubuntu. This font is installed in /home/.local/share/fonts in Ubuntu 19.10. As written this font 11ETTamilSup.ttf is displayed in Firfox in Windows 10, too.

Ernst Tremel said

cor-el said

This happens if you do not have a font installed that covers this Unicode range. Firefox will instead show little boxes with the hex code of the character if you do not have a font installed that covers this Unicode range.

• https://en.wikibooks.org/wiki/Unicode/Character_reference/11000-11FFF
• https://en.wikipedia.org/wiki/Tamil_Supplement

You need to install the "Noto Sans Tamil Supplement" font.

• https://github.com/googlefonts/noto-fonts/tree/master/unhinted
• https://github.com/googlefonts/noto-fonts/blob/master/unhinted/NotoSansTamilSupplement/NotoSansTamilSupplement-Regular.ttf

n Opera and in Chromium-Webbrowser my font 11ETTamilSup.ttf is displaed in Ubuntu. This font is installed in /home/.local/share/fonts in Ubuntu 19.10. As written this font 11ETTamilSup.ttf is displayed in Firfox in Windows 10, too.

In Opera and in Chromium-Webbrowser my font 11ETTamilSup.ttf is displaed in Ubuntu. This font is installed in /home/.local/share/fonts in Ubuntu 19.10. As written this font 11ETTamilSup.ttf is displayed in Firfox in Windows 10, too.

In Opera and in Chromium-Webbrowser my font 11ETTamilSup.ttf is displaed in Ubuntu. This font is installed in /home/.local/share/fonts in Ubuntu 19.10. As written this font 11ETTamilSup.ttf is displayed in Firfox in Windows 10, too.

So I cannot understand why my font is not displayed ONLY in Firefox in Ubuntu 19.10?

I tried to place my font 11ETTamilSup.ttf into usr/share/fonts/opentype/noto but this was not possible

So I must say, there might be a bug in Firfox 73.0.1 (64-Bit) in Ubuntu 19.10

Ernst Tremel said

In Opera and in Chromium-Webbrowser my font 11ETTamilSup.ttf is displaed in Ubuntu. This font is installed in /home/.local/share/fonts in Ubuntu 19.10. As written this font 11ETTamilSup.ttf is displayed in Firfox in Windows 10, too. So I cannot understand why my font is not displayed ONLY in Firefox in Ubuntu 19.10? I tried to place my font 11ETTamilSup.ttf into usr/share/fonts/opentype/noto but this was not possible So I must say, there might be a bug in Firfox 73.0.1 (64-Bit) in Ubuntu 19.10

I just found out that I could not install the font NotoSansTamilSupplement-Regular.ttf into usr/share/fonts/opentype/noto but this font was installed in /home/.local/share/fonts in Ubuntu 19.10. but it was neither displayed in Firefox in Ubuntu. So, howto resolve this problem?

I installed this Noto Sans font (15240 bytes) in my home folder "~/.fonts/n" where I usually install fonts and it worked instantly. I assume that all these locations will work although you may need to rebuild the font cache:

~/.fonts
~/.local/share/fonts
/usr/local/share/fonts
/usr/share/fonts

I had the page open in a Firefox tab and the Tamil font appeared automatically when I copied the TTF file to mentioned folder.

Did you verify that the 11ETTamilSup.ttf font includes the Unicode range for Tamil Supplement in 11FCO-11FFF ?

The full 11000-11FFF page shows for me only little boxes with the hex code of the character, so I not having any font that covers this fairly new Unicode range.

My font 11ETTamilSup.ttf includes Tamil Supplement in 11FCO-11FFF cf (ETTamilSupTTF.png) You may download my font 11ETTamilSup.ttf from my website https://www.skytower.org/~ernstjtremel/ OpenTypeFont ETTamilSup and then try to get e.g. this picture (in Wikipedia.png) in Firfox