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Thunderbird tiny font problem.

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Thunderbird add-on 'Theme and Font size changer' has stopped working as of April 10, 2018. This happens every 90 days. Thunderbird is USELESS without the ability to increase the font size. I sent the developer an email but have yet to receive a reply. Mozilla must make the ability to increase font sizes a feature of Thunderbird and Firefox.

Thunderbird add-on 'Theme and Font size changer' has stopped working as of April 10, 2018. This happens every 90 days. Thunderbird is USELESS without the ability to increase the font size. I sent the developer an email but have yet to receive a reply. Mozilla must make the ability to increase font sizes a feature of Thunderbird and Firefox.

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Someone modified the original add on to remove the stop date. You can get the fixed add on here. It seems to solve issues for people using this add on. https://addons.mozilla.org/en-us/thunderbird/addon/theme-font-size-changer-fixed/