This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Thunderbird:Tools>Options>Display>Formatting Stopped Working

  • 7 cavab
  • 2 have this problem
  • 5 views
  • Last reply by TheWeav

more options

It suddenly stopped working. My fonts went back to the default size. When I try to make any changes to Fonts nothing happens. I am using version 52.5.2 (32 Bit). My O.S. is Windows 10 Version 1079. I reinstalled Thunderbird, but that did not resolve the problem. Could this be a problem with the latest Thunderbird version? Thanks for any help.

It suddenly stopped working. My fonts went back to the default size. When I try to make any changes to Fonts nothing happens. I am using version 52.5.2 (32 Bit). My O.S. is Windows 10 Version 1079. I reinstalled Thunderbird, but that did not resolve the problem. Could this be a problem with the latest Thunderbird version? Thanks for any help.

All Replies (7)

more options

Were you using the Theme Font & Size Changer add-on? It stopped working yesterday. Here is a revised version:

http://www.rossde.com/ThemeFontSizeChangerNoexpire/index.html

…and here is guidance on how to install from an xpi file:

https://support.mozilla.org/en-US/kb/installing-addon-thunderbird

more options

Thanks for your reply. Theme Font and Size Changer only works in the Menu Bar area. I need to change font's in the Message Reading area, thus Tools>Options>Display>Formatting.

more options

If you look at the last image in this website:

http://xenos-email-notes.simplesite.com/417754775

...have you set the sizes for "Latin"?

more options

Yes I have tried that. It is set to Latin. It doesn't matter what Size or Color it is set to, there is no response. I believe this problem began with the new version, 52.5.2 download. I also installed Thunderbird on another Win 10 PC today and have the same problem. This download version is 52.5.2, the current version. As I indicated earlier, I reinstalled the program and have the same results. Thanks for your input.

more options

Strange, that is still working here in Windows 10.

more options

OK. Try changing it from "Latin" to "Other writing systems" and set the sizes there too.. That seems to be the option that relates to unicode/utf-8 fonts.

Modified by Zenos

more options

No, that didn't work.