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When I compose and send an email (I always write plain-text emails) in Thunderbird, it always truncates my sentences and adds line breaks in the middle of my sentences.

How do I turn this feature off? It is quite annoying to me.

For instance, when I send people long URLs, the URL gets cut in the middle because of the automatic line breaks.

I am using the latest Thunderbird 9 for Mac OS X

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3 Answers

up vote 10 down vote accepted

https://help.ubuntu.com/community/Thunderbird#Disable_word_wrapping_in_outgoing_messages

Disable word wrapping in outgoing messages

  • Edit -> Preferences -> Advanced -> General -> Config Editor
  • Set the preference called "mail.wrap_long_lines" to false

See also: http://kb.mozillazine.org/Plain_text_e-mail_(Thunderbird)#Flowed_format

... mail.wrap_long_lines to control the wrapping of long lines (defaults to true)

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This did not work for me until I toggled mailnews.wrap_length to zero as well. Then it worked like a charm, even with wrap_long_lines to false. This answer did point me towards the Config Editor, which is a good thing. –  Joost Aug 12 '13 at 13:36
    
Moreover, I had to close and re-launch TB to make it notice the new setting. For the record, this happened with TB 24 under Ubuntu 12.04 x64. –  Marcello Romani Mar 11 at 12:44
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There is also an addon that can be used to disable the wrapping without messing with the configuration editor:

https://addons.mozilla.org/en-US/thunderbird/addon/toggle-word-wrap/

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Concerning URLs, it is actually sufficient to enclose them in < and >.

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@chipperyman573 Question title: "Tell Thunderbird not to [...] wrap lines" question body "for instance [...] long URLs". One answer: put it between < and >. Not as good as the accepted one, yet a lot quicker and also working if you prefer to have the remaining text wrapped –  Tobias Kienzler Feb 16 at 8:04
    
Yeah I misread the answer, sorry. –  chipperyman573 Feb 16 at 8:08
    
@chipperyman573 no worries, I guess you saw it in the low quality queue, right? I'm also sometimes too quick there, that's why multiple votes are required after all :7 –  Tobias Kienzler Feb 16 at 8:14
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Yeah, I flagged it and realized "I'm way to tired to be doing this" and took a nap. Didn't last long though sadly... –  chipperyman573 Feb 16 at 8:15
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