Read Firefox Preferences Names (about:config)

[supun151515]

Hi,
I am searching how to read FireFox about:config Preference Names. My web page should be able to check print.always_print_silent = true in about:config. Because I don't want to prompt print dialog. This is to block user for printing multiple documents.

Thank You,
Supun Silva

[LIMPET235]

Moving to Firefox Support...

[dfoulkes]

Not real sure how updated this is... I would think that it is current... helped me in the past...

About:config entries - MozillaZine Knowledge Base

[Reflective]

Hi,
I am searching how to read FireFox about:config Preference Names. My web page should be able to check print.always_print_silent = true in about:config. Because I don't want to prompt print dialog. This is to block user for printing multiple documents.

Thank You,
Supun Silva

That setting you mentioned doesn't exist in about:config.

[Grumpus]

You can add the item to about:config on your own system as boolean or string.
Whether it works or not is another matter.
READ ALL FIRST
Open about:config, click on the "I accept the risk" button.
Right click anywhere in the list and then move mouse to "New" and select boolean.
Type print.always_print_silent in the text area supplied and hit enter.
You should be OK from there just select true or false.
You might want to select string instead of boolean so you can blank it out should it cause any issues.

[the-edmeister]

AFAIK, that preference is long gone from Firefox - possibly as far back as Firefox 3.0.

I did use that preference briefly and I recall being disappointed when it was deprecated.

.

[supun151515]

always_print_silent is still working. We have to add it first.
I want to know, how can I get that value (true/false) with javascript or jquery from my web app?

Because before I send print command, I want to confirm, this value is true. otherwise, users will get the print dialog box. Then a user can select any number of copies to print. In this web app, it is allowed to print one copy only.

Hope you guys understand my point.
Thank you,
Supun Silva

[kreemoweet]

That would be one mean security flop if web pages could access the contents of Firefox's "about:config" page . . .

The attempt to control other peoples' printers is also absurd . . .

[supun151515]

Kindly give me a solution for this

[kreemoweet]

Kindly give me a solution for this

Send me some money first. Lots of money.

[supun151515]

hahaha...

[Grumpus]

If my memory serves there are other methods inside JavaScript and html which can control whether a visitor has print privileges at a site.
What you want, to access a users preferences, has negative ramifications and highly improper.

[supun151515]

Grumpus,
I just want user to limit prints of a page. User should only print one copy. I am using PHP/Jquery/Apache/MySQL for development.
Hope you have a solution for this.
Thank You,
Supun Silva

[Grumpus]

Limitation would require managing the user's printer controls directly to reduce copies or closing the users ability to access the printed material.
No, I do not have a solution nor would I provide one if known, it's unethical, intrusive and a security breach.

[supun151515]

If you do not have any solution for this. I have a previous option. I just want to read a about:config variable with jQuery.