On Thu, 24 Mar 2022 10:27:11 +0100 Thierry Huchard
<thie...@ordissimo.com> wrote:
> Package:thunderbird
> Version:91.7.0esr
>
>
> I have a printing problem, Canon printers using the cnijfilter2 driver
> cannot print in black and white
> I reported it to Mozilla with a solution. It has been adopted and will
> be applied on version 100
> The problem is that the implementation of Portal for printing is faulty.
> The test proposed by emilio (Emilio Cobos Álvarez) works if Portal is
> not activated: "Can you confirm that going to about:config and setting
> print.cups.monochrome.extra_settings to CNGrayscale:True makes it behave
> as you expect? Thanks."
> Mozilla has removed its portal implementation, Gtk printing uses portal
> transparently: https://phabricator.services.mozilla.com/D139594
> I have disabled Portal in version 91.7 of firefox-esr and thunderbird, I
> attach the patch.
> Do you think that this patch can be integrated quickly in Thunderbird
> and Firefox-esr.
>
Fixed in thunderbird 102
> Thierry Huchard