Firefox: Disable VimFx

Revert "Firefox: VimFx: Disable autofocus prevention"

This reverts commit 915da8fdb8fd9cb19cf0d72986a7eb11f9c0792d.

Revert "Firefox: Settings for VimFx"

This reverts commit 429440d3e6b26feefb489e26efa421d4383f20d8.
Firefox: Disable "It's all text"

Revert "Firefox: Disable "Edit" button of "It's all text""

This reverts commit 4abdf1523f907f732dc7057e47a5adc7a950906c.

Revert "Firefox: Preferences for "It's all text""

This reverts commit 039ea0b1ef0b0ea8965043a8b273188637d181ad.

Revert "Firefox: Enable Addon "It's all text""

This reverts commit 02601910633351514c1285e218eaa00c9dba4966.
Firefox: Make ABP persistent