Firefox 56/57/58 sound/videos/printing not working when sandboxed [Fixed in beta 5.25.4]

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Moderator: Barb@Invincea

Barb@Invincea
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Re: Firefox 56/57/58 sound not working when sandboxed

Post by Barb@Invincea » Fri Mar 16, 2018 9:39 am

Hello henryg ,

We have not yet put a fix for this. So if you experience issues with Firefox, you will need to change the settings as explained in this thread.

Regards,
Barb.-

henryg
Posts: 535
Joined: Wed Nov 22, 2006 9:38 am

Re: Firefox 56/57/58 sound/videos/printing not working when sandboxed

Post by henryg » Fri Mar 16, 2018 12:17 pm

I have left well alone, ie security.sandbox.content.level remains set to 2
Henry

Phlipp
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Joined: Sun Mar 18, 2018 11:06 am

Re: Firefox 56/57/58 sound/videos/printing not working when sandboxed

Post by Phlipp » Sun Mar 18, 2018 11:39 am

:/
Unfortunately, none of these many options work under Win7 Home Premium - x64bit - Firefox Quantum 59.0.1(64-Bit)

browser.tabs.remote.autostart.2 is not listed under about:config

Spaceman Spiff
Posts: 33
Joined: Sat Aug 08, 2015 4:20 pm

Re: Firefox 56/57/58 sound/videos/printing not working when sandboxed

Post by Spaceman Spiff » Sun Mar 18, 2018 2:29 pm

With all this Firefox sandbox level upheaval/confusion,
I have been wondering about the following:

1) Could using Sandboxie together with a recent Firefox 59 (=FFX sandbox level 4)
theoretically make things LESS secure ?

In other words, could Sandboxie conflict with the Firefox sandbox, potentially lessening security?

I am NOT talking about sound/videos/printing not working with a sandbox level > 2.
I am talking about higher Firefox sandbox levels theoretically conflicting with Sandboxie
and thus actually weakening security...


2) With Firefox implementing Alternate Desktop (=sandbox level 5), and CFG (control flow guard)
in Firefox 60, it seems like the Firefox developers have made big strides forward regarding security.
I am asking myself if all the recent hassle with Firefox+Sandboxie is still worth the effort, or if
the security gain from this combination will be rather negligible quite soon...

An educated response by the developers would be much appreciated :) Thanks in advance!

Barb@Invincea
Sandboxie Support
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Re: Firefox 56/57/58 sound/videos/printing not working when sandboxed

Post by Barb@Invincea » Mon Mar 19, 2018 1:55 pm

Hello Spaceman Spiff,

There are several threads about Sandbox content level 4:
viewtopic.php?p=132827#p132827

Aside from the all the info listed in this thread, we have another one in the Quick Questions section that covers a bit more of what's going on:
viewtopic.php?f=17&t=25369#p132036

I have made the devs aware of your question in case they have anything else to add.

Regards,
Barb.-

Curt@invincea
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Re: Firefox 56/57/58 sound/videos/printing not working when sandboxed

Post by Curt@invincea » Mon Mar 19, 2018 4:09 pm

Spaceman Spiff wrote:
Sun Mar 18, 2018 2:29 pm
With all this Firefox sandbox level upheaval/confusion,
I have been wondering about the following:

1) Could using Sandboxie together with a recent Firefox 59 (=FFX sandbox level 4)
theoretically make things LESS secure ?

In other words, could Sandboxie conflict with the Firefox sandbox, potentially lessening security?

I am NOT talking about sound/videos/printing not working with a sandbox level > 2.
I am talking about higher Firefox sandbox levels theoretically conflicting with Sandboxie
and thus actually weakening security...


2) With Firefox implementing Alternate Desktop (=sandbox level 5), and CFG (control flow guard)
in Firefox 60, it seems like the Firefox developers have made big strides forward regarding security.
I am asking myself if all the recent hassle with Firefox+Sandboxie is still worth the effort, or if
the security gain from this combination will be rather negligible quite soon...

An educated response by the developers would be much appreciated :) Thanks in advance!
1) You are not lessening security by lowering the FF sandbox level and running it under Sandboxie. Sandboxie has been providing the same sandbox protections for years.

2) While FF's (and Chrome's) sandbox may protect you while browsing, you are still open to malware by downloading and running binaries off the Internet. FF's sandbox also has no driver enforcement -- it is all user-mode. User mode hooks can be removed and/or bypassed.

pipppero2007
Posts: 32
Joined: Sun Nov 10, 2013 1:28 pm

Re: Firefox 56/57/58 sound/videos/printing not working when sandboxed

Post by pipppero2007 » Sat Mar 24, 2018 11:51 am

Hello,

with Portable Apps and Windows 8.1 (latest build) I can't have sound with:

Firefox Portable Apps and the latest Sandboxie

I don't have this computer here right now to test so my question: I can use the workaround written here to solve? Should be the same?

cloves
Posts: 3
Joined: Sat Dec 10, 2016 1:05 am

Re: Firefox 56.0 sound not working when sandboxed

Post by cloves » Sun Mar 25, 2018 11:53 pm

bz-mof wrote:
Tue Oct 31, 2017 8:00 am
Hello everyone,

after one month without sound in FF56, 56.0.1, and 56.0.2 (64bit) inside SB5.20 (64bit) on Windows 7 prof SP1 64bit I finally found a workaround:
Setting

Code: Select all

browser.tabs.remote.autostart.2=false
is the solution for me.

Changing security.sandbox.content.level to 2/1/0 did not help, browser.tabs.remote.autostart was already set to false.

So my current config is al follows:
browser.tabs.remote.autostart.2=false (manually set)
security.sandbox.content.level = 3 (standard)
browser.tabs.remote.autostart = false (standard)

When I toggle autostart.2 and restart the browser the sound goes on/off.
Thank you this worked! Running ff 52.7.22 ESR

friegeof@isu.edu
Posts: 3
Joined: Sat Jun 13, 2015 1:11 pm

Re: Firefox 56/57/58 sound/videos/printing not working when sandboxed

Post by friegeof@isu.edu » Mon Mar 26, 2018 1:25 pm

Hi, Barb@Invincea and others,

Working in Sandoxie 5.24 (32-bit), I had no audio or video when running Firefox 59.0.1 (32-bit) on my old computer. Per Barb's recommendation, I lowered the security setting from 4 to 1 to achieve functionality. (2 was still too robust, I guess.)

I saw another comment about changing something related to tabs/remote/boolean/true-or-false, etc. Is that fix preferable to the one relating to "security"? Have I made myself less secure?

I am back up and running, but please let me know if the other option is a better one. Thank you.

Geoff

Phlipp
Posts: 3
Joined: Sun Mar 18, 2018 11:06 am

Re: Firefox 56/57/58 sound/videos/printing not working when sandboxed

Post by Phlipp » Mon Mar 26, 2018 3:35 pm

No readjustments necessary under several win10 operating systems. :/

Phlipp
Posts: 3
Joined: Sun Mar 18, 2018 11:06 am

Re: Firefox 56/57 sound not working when sandboxed

Post by Phlipp » Fri Mar 30, 2018 5:12 pm

Barb@Invincea wrote:
Thu Nov 30, 2017 10:15 am
Hello Stardance,

Have you performed the steps outside Sandboxie? If not, please do that and then delete the contents of your sandbox to re-try.

If the issue still persists, create a new Sandbox with default settings and let us know if the problem follows you there.

If all fails, please create a new Firefox profile, make sure that the sandbox content level is set to 2 or lower, and if needed disable multiprocess (browser.tabs.remote... ). Then re-try using Firefox to play videos inside Sandboxie.

Regards,
Barb.-
Solved: Sound is back. Thx Barb.-

Win7 Home Premium - x64bit - Firefox Quantum 59.0.1(64-Bit)

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