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Was using add-on "Theme and font size changer" , but with latest update this add-on is not available and I'm left with very oversize fonts

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Just had a security update to thunderbird. I've been using the Theme and Font Size Chhanger add-on to slightly enlarge the font size on my menuing system. But the add-on no longer works, apparently imcompatible with the changes to the latest firefox. Some years ago I was able to make changes to the thunderbird config files. Is that still possible? Or is there some other way to make changes to the font size.

Just had a security update to thunderbird. I've been using the Theme and Font Size Chhanger add-on to slightly enlarge the font size on my menuing system. But the add-on no longer works, apparently imcompatible with the changes to the latest firefox. Some years ago I was able to make changes to the thunderbird config files. Is that still possible? Or is there some other way to make changes to the font size.

Asịsa ahọpụtara

You can still use userChrome.css and userContent.css to modify text sizes.

Alternatively, here is a modified copy of the add-on:

https://www.dropbox.com/s/e2sc3gr4mogsi0h/theme_font_size_changer_for_thunderbird-62.0-sm%2Btb.xpi?dl=0

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Asịsa Ahọpụtara

You can still use userChrome.css and userContent.css to modify text sizes.

Alternatively, here is a modified copy of the add-on:

https://www.dropbox.com/s/e2sc3gr4mogsi0h/theme_font_size_changer_for_thunderbird-62.0-sm%2Btb.xpi?dl=0

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With the latest Mozilla update and the latest update to the Theme and Font Size Change, all is working. Thank you.

As a matter of interest, I've been using Thunderbird since about its second year out.