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Allow overriding prefs

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This commit would allow overriding prefs
(locked or otherwise) with a user accessible file even
on sandboxed/restricted releases (like AppImage or Flatpak).

This works because the last specific pref value that is parsed
during startup is the one that gets actually applied; this way
an empty / non existing overrides file will not have any effect,
and only prefs changed in this file will be changed, while other
prefs from the `librewolf.cfg` will still be applied.

The difference to a `user.js` is that at this stage / with this
file, even locked prefs can still be modified.

Should we desire to have some prefs _really_ locked down (which we
do not want to be changeable with this override method), we could
just place them after the changes from this MR - so they would be
parsed after those defined in the overrides file and could override
pref changes made there.

Somewhat related to #45, #27; should partially fix #8 and basically
mitigate the recurring issues of users unable to edit some locked
settings when using a more restricted release variant.

Should probably be added to the docs, once merged.
This commit is contained in:
ohfp 2021-04-26 11:43:42 +02:00
parent 247ebd6c87
commit b33bfb5a03
1 changed files with 8 additions and 0 deletions
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8
librewolf.cfg
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@ -2772,3 +2772,11 @@ defaultPref("devtools.selfxss.count", 0);
// enable HTTPS only mode by default // enable HTTPS only mode by default
defaultPref("dom.security.https_only_mode", true); defaultPref("dom.security.https_only_mode", true);
defaultPref("dom.security.https_only_mode_ever_enabled", true); defaultPref("dom.security.https_only_mode_ever_enabled", true);
// allow settings to be overriden with a file at `~/.librewolf/librewolf.overrides.cfg`
// or `~/.var/app/io.gitlab.librewolf-community/.librewolf/librewolf.overrides.cfg` (Flatpak).
// not yet verified to work on Windows and MacOS releases
let home_directory = getenv("HOME");
if (home_directory) {
pref("autoadmin.global_config_url", `file://${home_directory}/.librewolf/librewolf.overrides.cfg`);
}