This is a multi-part message in MIME format. --ptirs0u9S2uq=_?: Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit

Purina® ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ͏‌ ......

This is a multi-part message in MIME format. --ptirs0u9S2uq=_?: Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit

then the graphics. The characters shown are all the same. This won't let me enter them as they just come up empty but, the strings are like this if you remove the spaces...

Purina® & # 8 4 7 ; & z w n j ; & # 8 4 7 ; & z w n j ; ...

Every character has the same thing however they don't display that way.

No font is specified in the HTML?

"No font is specified in the HTML?"

Not that I can see. Just header, mime content and some images.

Like I said, TB uses the graphics when it doesn't know what to do. Why that font? Where can I change it? Nobody seems to know.

I have no special knowledge about how Thunderbird uses fonts. I was hoping that my questions would reveal useful information.

All I can think is that a font file is corrupted. If you can find it and replace it, maybe the problem will be solved.

I am sorry that I could not help more. Maybe other people can.

"I am sorry that I could not help more. Maybe other people can.

I appreciate your help. It is weird. I may just go with a different email client.

Thanks again!

Hello there Cherry7

Let s start again with all your issues now. Having weird characters , missing buttons , misding advance options.

A second look for you. Is that issue still there?can i ask? All these symptoms are really matching our answers to you. Our diagnostic answers to you is that you have an ui corruption.(Users Interface). Often caused by faulty updates, faulty hardware acceleration and even more as failed themes, Incorrect character encoding.

Fix Reset toolbars in safe mode.

Reset the xjulstore.json file. Go to the profile folder>help troubleshooting information>profile folder>open folder. Close thunderbird. Find the xjulstore.json and rename it to xjulstore.jason.old . Restart thunderbird.

Also hardware accelerations can be the culprit here , and are adjustable for intern chips as onboard solder x iris set (as well .) And as last , the use of troubleshoot mode is effective. Even if there is 1 add-on installed.

Greetings googlethunderbird

Use https://support.mozilla.org/en-US/kb/troubleshoot-mode-thunderbird

Hello there cherry 7

Having multiple updates a year can have caused this.(as a preview) (Or)Long term wrong usage of the thunderbird software to. That s my answer.

I think i did helped you well. Have a good day.

Greetings Googlethunderbird.

Cherry, are you doing anything with fonts in userChrome.css?

No. I don't even run Chrome on this box. I do have a lot of fonts for my graphic arts work but I don't think I have that font. I'll go through them and see. If I find it, I'll uninstall it and see what happens.

It is odd that the ONLY application that displays this is Thunderbird and, it only does it occasionally, not all the time.

No. I don't even run Chrome on this box. I do have a lot of fonts for my graphic arts work but I don't think I have that font. I'll go through them and see. If I find it, I'll uninstall it and see what happens.

Userchrome.css is not related to Chrome, at least not in Thunderbird.

I don't know what font you are referring to.

OK, the offending font is "Inter", I0001076.TTF. It is in my home dir private font directory, ~/.fonts/TrueType/2000_fonts/. I have absolutely no clue as to how Thunderbird is even finding this font and why it picked this one out of the 2000+ fonts I have in that directory. In addition to that, it is disabled in Font Manager. Using grep, it isn't in any Thunderbird file or config file. Anyway, uninstalling that font seems to have resolved the issue. Of course, I still have no idea why it happened or how to find out how it happened. The fix was to just remove the font which isn't a problem as I don't need it. The new font is a very readable sans serif font. I don't know what font but it isn't Helvetica or Arial.

I appreciate all the pointers and help and suggestions. Now to figure out the tiny font in the message composition window and I'll have a working Thunderbird again!

Thanks again