[RFC] Remove some unnessecary configs

[boredsquirrel]

Is your feature request related to a problem? Please describe.
There are some settings that are just plain unnessecary, I havent gone through all, but having them with a user.js means they are forced and cant be changed.

List the concerned preferences

user_pref("mail.SpellCheckBeforeSend", true); //should be optional
user_pref("mail.html_compose", false); //can be changed in GUI, its just a "no HTML killswitch" for paranoid people
user_pref("mail.default_send_format", 0); //defaults to plain text, only changes if you use formatting, best experience
user_pref("mail.inline_attachments", true); //where is the problem? In sanitized HTML no images are really shown anyways

Describe alternatives you've considered
changing these settings manually with sed

Checklist

• I know thunderbird user.js is a template and personal preferences should be stored elsewhere ;
• The change I want to propose should globally improve the usability / ( privacy + security + anti-fingerprinting ) ratio ;
• I agree that subsequent modifications to my change scope may occur in the future.

[boredsquirrel]

great work by the way! I will use it and automate my modifications

[HorlogeSkynet]

Hello @trytomakeyouprivate,

but having them with a user.js means they are forced and cant be changed.

This project uses user_pref directives (not locked), this means that they can be changed (either manually from about:config at runtime, automatically using a TB add-on, and mainly from another user_pref at the end of your user.js.

My two cents below about your removals proposal :

• mail.SpellCheckBeforeSend has not been touched since initial release : I'm okay for a "reset" ;
• about mail.html_compose & mail.default_send_format, we already discussed this in enabled HTML and Text sending #34 ;
• mail.inline_attachments is disabled to force TB to show "inline" attachments as simple (external) ones, including the ones that can be "rendered" (based on MIME Content-Disposition).
  Even if, as you pointed out, images are out of the equation here as we sanitize HTML with mailnews.display.html_as, I'd rather let "inlining" globally disabled.
  However, during my source code wanderings, I also encountered mail.inline_attachments.text that we may add to the template (left to default though).

I would like to remind you that this project is a template that you should adapt according to your needs. From a "code" point of view, it can be forked and maintained as a personal GitHub project (where you would "merge" new upstream changes), or simply locally cloned with manual overrides.

great work by the way! I will use it and automate my modifications

Thanks 🙇
If you happen to tweak Arkenfox upstream scripts (as partially proposed in arkenfox/user.js#910), please open a PR here (also see related #1 and #10) !

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A dead-simple "script" (which does not handle preferences "reset" in prefs.js) could be :

cat template-user.js user-override.js > user.js

[HorlogeSkynet]

Closing here as above proposals have been added, bye 👋