Glyph bbox was incorrect (Firefox)

[josezulu]

Hello everyone,

I'm getting this warning on Firefox's console:

"downloadable font: Glyph bbox was incorrect (glyph ids 40 60 62 76 88 89 92 96 102 119 122 127 129 138 143 191 209 210 211 212 213)"

[fox91]

Hi @josezulu, thanks for reporting.
From a quick glance it appears to be the same warning reported here: FortAwesome/Font-Awesome#19925
If not, can you elaborate more on the warning, what version of Firefox you are using, and provide a code example to reproduce it?

Please, take a look at this: #228.
Can you provide a PR to fix this issue?