Re: Re: Manual line breaks in emails

On 3/28/26 12:04 PM, Dale wrote:
> I'm not sure what I should see.  The part above is ever how wide my 
> window will allow.

That's what format=flowed does, cause the logical line to wrap at the 
window width.

Take a look at the message source (control U) and you'll see that the 
physical lines are wrapped at ~72 characters.

> I'd like it to wrap at some number, maybe 80, maybe 100.

It sounds like you are wanting the display of the logical line to be 
wrapped at 80 or maybe 100 characters.

That's controlled by the window width.  Read:  Make the window narrower. 
  ;-)

> I'd like to play with the setting a bit.

The setting effects the number of characters on the physical line in the 
message source.

The window width effects the number of characters on the logical line.

> The arthritis in my neck make turning my head harder.  So I like to 
> read more narrow stuff by moving just my eyes.

Fair enough.

The wonderful thing about format=flowed is I can send physical lines 750 
characters.  The logical line will only be as many characters wide as 
your window (or view port as it's called on mobile devices).

> I can help with this in Firefox by making Tree Style Tabs wide. 
> That narrows the window space available for articles and such.

You can do similar by adjusting the width of the folder pane on the 
left.  (My folder pane is full height on the left.  I think it can be 
changed.)  --  Try "View" menu, "Layout" sub-menu, "Classic View" or 
"Vertical View".

You can also open the message in it's own window and resize it to your 
liking.

I exceedingly rarely have the message window or preview pane the full 
width of my screen.

One of the nice things about format=flowed is the text is re-wrapped to 
the window width as I resize it.

> I have mailnews.wraplength set to 72.  I'm not sure it is wrapping tho.

The mailnews.wraplength sets the wrap length of the physical lines in 
message source code of messages you send and has nothing to do with how 
many characters are displayed on a line for messages you receive.

> The other wrap settings are set to true as well.
Only one of the settings I listed is set to true, the other one is set 
to false.

  - mailnews.display.disable_format_flowed_support = false

disable_format_flowed_support does what it's name said and disabled 
support for format=flowed.

If you have that set to true, I expect that my messages are all showing 
up as approximately 72 characters wide.

> I'd think it would wrap but even when I narrow or widen the pane for 
> reading, it just expands to fit and is really wide.  It doesn't seem 
> to wrap.

If disable_format_flowed_support is true, then I would expect that you 
would get a scroll bar under the text in the preview pane or reading 
window if you made the window / preview pane narrower than text.

Conversely if disable_format_flowed_support is false, then Thunderbird 
should re-wrap the text to match the window / preview pane's width.

> Odd.

If you've disabled format=flowed, then not really.  At least not based 
on my understanding of your settings and format=flowed.



-- 
Grant. . . .