Hi gipsyking,

did you change the font only in the editor with A^ or in the settings?

georg

Tools-options-General-Variable Width (I chose Arial Black) large .

Text Color-Black.  Background Color- White.

 OK.

 That how I set it.   The font size and type will change during typing most of the time and it drives me crazy.

Thanks Ed

Tools-options-General-Variable Width (I chose Arial Black) large . Text Color-Black. Background Color- White.

OK.

That how I set it.   The font size and type will change during typing most of the time and it drives me crazy.

Thanks Ed

Have a look at this: https://support.mozilla.org/en-US/questions/998838?esab=a&s=&r=19&as=s

After few trial and errors I found the formula. Tools-Options-Display - set font and colour and size. Click Advanced-Untick - Allow messages to use other fonts. OK,OK

Click : Write. Before starting to type go thrugh the same motions again as the first time: Tools-Options-Display - set font and colour and size. Click Advanced-Untick - Allow messages to use other fonts. OK,OK It worked for me and the font remains the same all through typing.

I thought I fined the solution but I didn't. I spent countless of hours trying fix it but its not happening. I'm looking some other e male providers and planning to leave Thunderbird.

If Mozilla don't care or incompetent to fix the problem means I'm fighting a losing battle. But why should I?

Seems to be besetting. So let's try step by step. When editing a new mail, you set e.g. Arial size 12 in Tools>>Options>>Display>>Formatting. After that you start typing the content of your mail. When does the character typ/size change? With typing the first letter or later? How does the edititor look like, before you start typing, is it an empty pane or is there a signature?

"Tools>>Options>>Display>>Formatting"

But that will set the font displayed to the sender as he composes his message. It doesn't have any effect on the fonts embedded into the message he's writing.

I suspect our OP has discovered that his messages can look fine when being written but are all over the place in the recipient's mail program, because this setting can make TB hide font changes so he doesn't see them when composing.

I still think that Stationery is useful because it explicitly defines styles, and some buffer blank lines are the best way to avoid travelling past invisible font tags. Or use an HTML source viewer/editor to see where your cursor is, or what is being inserted for you.

HTML can be complex; it's hard to know exactly where your insertion point is. You are right to raise the question about signatures because they also introduce invisible formatting.

In the past, users have reported font size change tags appearing randomly in the text of the message being composed. Again, an html source viewer may be necessary to see if that's what's happening in this case.

Without further dwelling into it I set the Options as the picture shows. So far it has been a success, the font hasn't changed since I did that. Maybe its a wrong setting but its been working for me so far. Fingers crossed.

I was wrong, only worked for awhile then the font changing again. I tried most of the help offered here but at the end its no use.

Why can't Thunderbird find a solution?

Hi Ed,

I think, Thunderbird can not find a solution, because it's not a software problem. (By the way, this forum is a place where users help others, not developers or any support organization. If you want to file a bug to mozilla (the organization which develops TB) you should have a look at https://bugzilla.mozilla.org/)

I have another idea, what could be the mess: Is it possible, that you press by chance CTRL blank just before the font changes? Thunderbird uses many shortcuts when creating a mail (depending on the version), e.g. CTRL + === larger font size CTRL - === smaller font size CTRL blank === reset all font attributes to what you defined in "Tools>>Options>>Display>>Formatting" (for more information on shortcuts see https://support.mozilla.org/en-US/kb/keyboard-shortcuts)

So when you're typing your mail and press unintentionally CTRL blank, the font will change back to the default. Can you check this out?

t may also be helpful to check what html code TB creates. To do this, simply save your mail (File>>send later in the Compose Window) after a font switch occurs and open it again (from outbox folder). Then press CTRL U to see the html created.

Hope this helps.

No there's no chance of me pushing the CTRL blank. What I'm also interested is the size of the default font? As you notice my post just above you the font even changed unintentionally when I typed" Why can't Thunderbird find a solution?"

I wish they would.

That's a feature or quirk of this forum's formatting system.

A leading blank will do that.  

And I'll wager that you didn't intend to insert a leading space. What else might you be doing unintentionally?

Anyhow, you don't post to this forum using Thunderbird do you?

Having tried "most of the help offered" maybe you should try ALL of the help offered.  ;-)

I have to confess I was to divorce Thunderbird but I'm too lazy to seek different pastures right now I'm writing on TB.

I don't really understand all the technical talk in this help forum, all I want is just to start wright in one font and finish it with the same one. In the past I used Incredimail and I never come across problems like here. The only problem was with Incredimail that it was loaded with Potentially Unwanted Programs.

As far as it goes I can go into Tools-Options-Display and select the font and Text size. Everything after that is not very clear for me. As far as I'm concerns Thunderbird is just an e mail program misbehaving and no one knows how to overcome this.

That is my last e mail and you can see for yourself how annoying it is to keep on typing when most probably the recipient will received it the way it looks: