Also,  I forgot to clarify which gtkrc you needed to edit:

This should go into ~/.gtkrc-2.0:

gtk-print-backends = "file,lpr,cups"

This is supposedly important.  Be sure to save the original so you can
roll back.


On Sun, Mar 18, 2012 at 4:09 PM, Lisa Kachold <lisakachold@obnosis.com>wrote:

>
>
> On Sun, Mar 18, 2012 at 2:07 PM, Mark Phillips <mark@phillipsmarketing.biz
> > wrote:
>
>>
>>
>> On Sun, Mar 18, 2012 at 12:53 PM, Lisa Kachold <lisakachold@obnosis.com>wrote:
>>
>>> Hi Mark
>>>
>>> On Sun, Mar 18, 2012 at 11:51 AM, Mark Phillips <
>>> mark@phillipsmarketing.biz> wrote:
>>>
>>>>
>>>>
>>>> On Sun, Mar 18, 2012 at 10:01 AM, Lisa Kachold <lisakachold@obnosis.com
>>>> > wrote:
>>>>
>>>>> Hi Mark
>>>>>
>>>>> On Sun, Mar 18, 2012 at 7:49 AM, Mark Phillips <
>>>>> mark@phillipsmarketing.biz> wrote:
>>>>>
>>>>>> I have Firefox 11.0 installed, as well as Google Chrome 17.0.963.65,
>>>>>> Opera, and of course, Epiphany on my Debian testing machine. I use cups for
>>>>>> printing over the network to my hp printer. Chrome, Opera, Epiphany all
>>>>>> recognize all the installed printers on my network, but Firefox does not
>>>>>> see any of them. I don't even have the print to file option that most posts
>>>>>> on the subject talk about. When I look in firefox's about:config at all the
>>>>>> print* settings, the printer is there, but it does not show up in the print
>>>>>> dialog and I cannot print from firefox.
>>>>>> Anyone else have this problem, and know how to solve it?
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> Mark
>>>>>>
>>>>>
>>>>> Reference:  http://wiki.debian.org/SystemPrinting
>>>>>
>>>>> A) Have you logged into Cups to see if there is an error?
>>>>>
>>>>
>>>>> http://localhost:631
>>>>>
>>>>> WHAT IS THE ERROR message in the logs?
>>>>>
>>>>
>>>> Yes, I have looked at the cups error logs as well as the admin portal.
>>>> There are no errors from firefox, since it never sees any of the printers.
>>>> All other applications (browsers, libreoffice, etc.) print without errors.
>>>>
>>>>>
>>>>> <snip>
>
>>
>>>>> B) If this is a "permissions issue", you might have to add the Firefox
>>>>> invoking user to the group file:
>>>>>
>>>>> sudo usermod -a -G lpadmin tom
>>>>>
>>>>> firefox is running under user mark, and I am in the lpadmin group
>>>>
>>>>>
>>>>> C) Are you using a postscript printer?  I see you are using printers
>>>>> that require postscript, but cups and GTK should work.
>>>>>
>>>>
>>>> gnome gtklp runs and finds all the printers.
>>>>
>>>>
>>>> Also, why would the type of printer make a difference? If cups can
>>>> print to that printer, why would firefox care, unless firefox doesn't use
>>>> cups?
>>>>
>>>
> Firefox (like all prebuilt binaries) can be sensitive to GTK issues.
>
>>
>>>>> Firefox:
>>>>> 1. First, if you haven't done so, you need to print to PostScript in
>>>>> order for the needed entry in prefs.js to be populated. This will be done
>>>>> automatically the first time you print. Open any web page and go to:
>>>>>
>>>>> File --> Print --> choose PostScript/default (it should be the default
>>>>> if you haven't installed any printers yet) --> click "Print"
>>>>>
>>>>
>>>> The problem is that there are no printers int he File --> Print dialog,
>>>> so nothing to print to.
>>>>
>>>
> There are known issues with Mozilla and GTK that present this SAME way:  https://bugzilla.mozilla.org/show_bug.cgi?id=430818
> <https://bugzilla.mozilla.org/show_bug.cgi?id=430818>
> If you read that post they discuss reinstalling another version of GTK.
>
>>
>>>>> Did you verify the GTK?
>>>
>>> Did you check for the gtkrc file?
>>>
>>
>> I have a lot of gtkrc files -
>> locate gtkrc
>>
> <snip>
>
> Please try:
>
>> # "locate gtk-2.0"
>>
>>
>
>>
>> You didn't give us your exact distro (there are many debian testing
>> versions) so I could not be sure this was not the Firefox gtk bug:
>>
>>>
>>>> E.  If you have an older version of debian (known gtk bug issues) you
>>>> might try (verify) this:
>>>>
>>>> 1. From the terminal change into the gtk-2.0 directory...
>>>> cd /etc/gtk-2.0  [if you have a different version,check for the gtkrc
>>>> file as in 2.]
>>>>
>>>> 2. Use sudo and a text editor (my editor of choice is "vi") to create
>>>> the gtkrc file in the /etc/gtk-2.0 directory...
>>>> sudo vi gtkrc
>>>>
>>>> 3. Add the following to your newly-created gtkrc file...
>>>> gtk-print-backends="lpr,file"
>>>>
>>>> 4. Exit the text editor and save your newly-created gtkrc file.
>>>>
>>>> 5. Re-start your computer to incorporate the changes.  [Not sure why
>>>> they suggest this step, but it's in all the posts...]
>>>>
>>>> 6. Re-open firefox and you should be able to print to "lpr" from it!
>>>>
>>>
>>
>> Set the default printer:
>>
>> lpoptions -d printer-name
>>
>> The ‘d’ option sets the default printer.
>>
>> If your shell is bash (which is the most common), you’d use the syntax in
>> your *~/.bashrc* file:
>>
>> export PRINTER=printer-name
>>
>>
>>> I can print from the command line with lpr with no problem. If I go to
>>> about:config in firefox, my printer is there with all its different
>>> options. But the line print.printer_list is empty. The print.print_command
>>> has lpr ${MOZ_PRINTER_NAME:+-P"$MOZ_PRINTER_NAME"}, so I know it is trying
>>> to use lpr (same as the print.postscrip.print_command). But lpr works from
>>> the command line.
>>>
>>
> A command line print to lpr is a completely different program etc.
> If you didn't do the two options above, adding your default printer name,
> how can you expect it to be inherited in firefox as the variable name
> MOZ_PRINTER_NAME? Also add to your ~.bashrc file:
>
> export MOZ_PRINTER_NAME=printer-name
>
> There are a few links that indicate an UPGRADE will break printers.  Is
> this a Firefox upgrade?
>
>
>>>
>>> It seems to be that firefox is not finding the list of printers from
>>> wherever it is supposed to find them, and so it cannot print.
>>>
>>
>> Right....let's reset the printer:
>>
>> As a first step, reset the selected printer in your Firefox preferences:
>>
>>    1. Type *about:config <http://kb.mozillazine.org/About:config>* in
>>    the Location Bar and press Enter. A list of preferences will appear.
>>    2. Find the preference *print.print_printer* (Note: this preference
>>    is missing in Firefox profiles where you've never used the printer.)
>>    3. Right-click (context-click) that preference and select *Reset*.
>>    (Some users may need to reset all the *print.printer* preferences for
>>    a particular printer, if resetting this one master preference doesn't solve
>>    the problem.)
>>    4. Restart Firefox and see if the problem is resolved.
>>
>> about:config does not have a print.print_printer entry.
>
> Correct, Mark, if you upgraded Mozilla or never used this Firefox printer
> yet, you are not going to see it (that's what that red means up there...)
>
>
> I tried adding a print.print_printer entry, and then reset it, but it is
> just an empty string. There are no instructions on how to manually add the
> printer.....the red text was not very helpful. (I don't mean you are not
> helpful, just I ran across this info earlier in one of my many google
> searches on this problem, and found the red text somewhat humorous and not
> very helpful).
>
> Try setting your print.print_printer to Officejet_Pro_L7600
>
>> Note: If you get the warning dialog, "Printing failed when starting the
>> document" and if the *print.print_printer* preference has no printer
>> shown, either you don't have a printer selected, or Firefox doesn't know it
>> is installed on your system.
>>
> Be sure you have added the ~/.bashrc entries above.
>
>>
>> Follow this instruction to reset by double clicking on
>> print.print_printer and setting your default:
>> http://www.linuxquestions.org/questions/linux-newbie-8/firefox-not-seeing-cups-printers-869422/
>> My default printer is already installed, since I can print from the command
>> line using lpr.
>>
>> Mark, your printer is not installed for FIREFOX!  Forget your lpr command
> line printing <laugh>!
>
>> It is not installed for Firefox.
>>
>>
>> When I run lpoptions, I get
>> auth-info-required=none collate=false ColorModel=RGB copies=1
>> device-uri=hp:/net/Officejet_Pro_L7600?ip=192.168.25.102 Duplex=None
>> finishings=3 InputSlot=Auto job-hold-until=no-hold job-priority=50
>> job-sheets=none,none marker-change-time=0 MediaType=Automatic number-up=1
>> number-up-layout=btlr OptionDuplex=False OutputMode=Normal
>> outputorder=normal PageSize=Letter position=center printer-commands=none
>> printer-info=Officejet_Pro_L7600 printer-is-accepting-jobs=true
>> printer-is-shared=true printer-location=office printer-make-and-model='HP
>> Officejet Pro l7600, hpcups 3.11.12' printer-state=3
>> printer-state-change-time=1332096319 printer-state-reasons=none
>> printer-type=167948
>> printer-uri-supported=ipp://localhost:631/printers/Officejet_Pro_L7600
>> wrap=false
>>
>>
> [edit<http://kb.mozillazine.org/index.php?title=Problems_printing_web_pages&action=edit&section=2>
>> ]
>> <snip>
>>
>> See full link:  http://kb.mozillazine.org/Problems_printing_web_pages
>>
>>>
>>>>
>>>> Respond with logs and test output with exact versions please?
>>>>
>>>
>> What is:
>> # uname -a
>>
> Linux orca 3.1.0-1-amd64 #1 SMP Tue Jan 10 05:01:58 UTC 2012 x86_64
> GNU/Linux
>
>>
>> Do you have a 64bit distro?
>>
>  Yes
>
>> If so, Firefox cannot use the 64bit GTK (another bug); just install the
>> 32 bit.
>>
> It is installed - /usr/lib32/libgtk2.0-0
>
> Please give us an idea what linker libs Firefox needs using:
>
> # ldd $PATH/$FIREFOX.bin
>
>>
>>
>>> <snip>
>>>
>>
>
>>
>> But just manually adding or resetting your Firefox printer (if everything
>> else is normal) (after upgrade) should fix it.
>>
>
> I guess I expect it to find all the printers, and not make me add them
> manually, like every other program. I would add it manually, if I knew how!
> I have tried various combinations of Officejet_Pro_L7600 (see the lpoptions
> output above), and then resetting firefox, but it never shows up in the
> printing dialog. I have also tried the option of using gtklp instead of lpr
> in the print.print_command option, but no luck there either.
>
> Gee, if you reset all those options and restart Firefox, (after adding the
> "default lpr" and .bashrc entries) and you still don't see a printer,
> please reply with the ldd info, so we can verify which GTK libs and linkers
> it's needing?
>
>
>>> Thanks for the suggestions!
>>>
>>> Mark
>>>
>>>
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