Firefox Support Forum

Hi, I have attached 2 screenshots: 1. The background where I want to apply the image in firefox. 2. Chromium after changing the background.

Is there a way to change the background in Firefox to an image of my choice?

I have a small Linux based pc running Firefox in kiosk mode. The pc is not connected to the Internet and only has acess to a dedicated server under my control, serving a few webpages and a java applet. Suddenly the system started complaining java my java version is outdated messing up the kiosk display.

- how did firefox figure out the java version is outdated if neither the frond end pc nor the back end server have access to the Internet - is there a way to turn off java security checking in one of the firefox config files? The kiosk pc boots from the network, the firefox profile is automatically generated, so I need a way to change this in the config files, not through the GUI as I won't be there every time the kiosk boots.

I'm running Firefox 13.0.1, I know this is old but security isn't an issue as I'm only accessing my own server and updating the firefox version on the PXE image is a pain.

I'm trying to use a ssl proxy with accounts.google.com.

Usually, firefox warns me about invalid certs, however it let me add an exception if I wanted to connect to it anyway.

But, if i want to connect to accounts.google.com, it blocks me, and it doesn't let me add that exception.

Why it happens only with this subdomain?

I noticed that just about every time i start my computer and open Nightly I get a download popup to download the OpenH264 codec by Cisco. I did and I noticed that there was an entry for it in the Plugins section of the Add-Ons Manager and it states 'Will be installed shortly'. What it had me download was a zip file that contained two files. One that gave a short explaination of the codec and a libgmpopenh264.so file. Now I have no clue what to do with the .so file to get it installed into Nightly.

Is anyone else having this issue and what can I do about it? I am running Xubuntu 14.04 64-bit.

One hour ago I was happily watching youtube videos under Linux using Firefox 20.0 and flash 11.2. I just updated firefox and it is now blocking my flash and prompting me to update. The problem is I can't update because 11.2 is the LAST flash plugin for firefox, there won't be any other version.

Is there a way to prevent firefox from disabling my plugin?

I'm using Firefox 41 for Linux 64 bit and I need to communicate over a proxy requiring authentication. I have to enter username and password after each start of Firefox. I found at this forum that setting of the following things in about:config would help but it does not:

network.negotiate-auth.allow-proxies : false network.proxy.share_proxy_settings  : false network.automatic-ntlm-auth.allow-proxies : false network.auth.use : false signon.autologin.proxy : true

So is there any way how to save the credentials to avoid repeated prompting for them in each new Firefox session?

Thank you for your help, Martin

I am using Firefox version 33.0 with an Ubuntu 14.04 LTS operating system. I get a 403- Forbidden: access is denied message when trying to access my Microsoft Outlook Web App (OWA) email. When I use another computer running Firefox version 33.1.1 with a Window 7 operating system, I can access my Microsoft Outlook Web App email perfectly. Does anyone have any suggestions on how to get my Firefox browser on the Ubuntu machine to be able to access my email on OWA?

I frequently work with Inspector in firefox and I want to save changes(atleast those I make in direct html or css code) to my source code. Is this possible with any add-on or some in-built option in firefox?

Installed Ubuntu 9.10 and 10.04. Firfeox will not access internet. Works fine in 9.04

This happened

Every time Firefox opened

this html/javascript line works on firefox 26 but not on firefox 27

<marquee onMouseOver='this.stop();' OnMouseOut='this.start();'>Hello</marquee>

Why ?

I run into this mostly on Diaspora*, Gihub, and Wordpress sites. I either get the standard block character or something I've never seen before.

see https://imgur.com/a/r5rvk for examples

I haave firefox running on Ubuntu with firefox 61.01 and while watching Youtube videos either over 50 minutes or live the message "gah. your tab just crashed" would appear. When i go to about:crashes I do not see any crash reports.

I have tried disabling hardware acceleration clearing all stored information cookies, history etc..

I have updated my Firefox to the latest stable release 57 in a windows machine. I would like to know if TLS 1.2 is already enabled in my browser or do i need to make any changes in the default setup in order to make it active.

When i check "security.tls.version.min" it's shown "Value 1". Is that the right value to TLS 1.2 ?

Kindly advise.

I am running a local apache server for website development. I have always accessed these local sites with http://

Suddenly today firefox is redirecting to https:// and I receive the "Secure Connection Failed" error.

I have completely removed the firefox profile by deleting the ~/.mozilla and ~/.cache/mozilla directories, but the problem persists.

I have set browser.urlbar.autoFill to false, but the problem persists.

I am not running any extensions or add ons.

No changes to the apache configuration have been made.

No system updates have been installed since it was working yesterday.

Even with apache stopped, the local sites still immediately redirect to https://

The sites are directed to localhost via the /etc/hosts file, for example: 127.0.0.1 examplelocalsite.dev

I have restarted the computer and the problem persists.

The problem is not occurring in Chrome.

The problem is not occurring with external http:// websites.

I am not running any type of security software other than a basic firewall configuration with ufw

The problem persists with ufw disabled.

I have purged the firefox installation with apt purge firefox and reinstalled fresh but the problem persists.

when installing adobe flashplayer (APT for ubuntu 10.04+) on firefox in ubuntu, i am asked which application to open it with, I don't know as I have not used ubuntu much? which application should I use?

this morning I updated my firefox to 14.01. after that one of my extension i.e firebug just stopped working at all, I mean I couldn't even find the icon in my browser. I even tried to go to tools>addons> but you know what, even that page is not responding it keeps on loading no results at all. Please can anyone please help me out this cause I'm the middle of my project I really need this firebug. plsss

As of about firefox 63, it will no longer be possible to prevent firefox from checking for updates as the preference (option) to do so is being removed. In the past, it was simply a matter of setting the option to never check for updates. This is important in an organization as you want everyone to be at the same level. In such organizations, the latest firefox would be obtained once, checked out, then rolled out to the organization from it's support system team/person. Is there going to be a way to prevent the message "an update is available, please install?"

I am on Linux, the kernel version is 3.10.0-663.el7.x86_64 (Red Hat 7.4 beta). I am working through ThinLinc version 4.8.0, Build 5456. When I start Firefox I get a tab indicating a crash. When I am logged directly on the machine, not through ThinLinc, it work fine. I copy the error message I get in my shell from the crash:

[root@cad1 ~]# [Parent 17786] WARNING: pipe error (7): Connection reset by peer: file /builddir/build/BUILD/firefox-52.2.0/firefox-52.2.0esr/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 322 [Parent 17786] WARNING: pipe error (50): Connection reset by peer: file /builddir/build/BUILD/firefox-52.2.0/firefox-52.2.0esr/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 322 [Parent 17786] WARNING: pipe error (48): Connection reset by peer: file /builddir/build/BUILD/firefox-52.2.0/firefox-52.2.0esr/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 322 [Parent 17786] WARNING: pipe error (46): Connection reset by peer: file /builddir/build/BUILD/firefox-52.2.0/firefox-52.2.0esr/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 322 [Parent 17786] WARNING: pipe error (47): Connection reset by peer: file /builddir/build/BUILD/firefox-52.2.0/firefox-52.2.0esr/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 322

1. 1. 1. !!! [Parent][MessageChannel] Error: (msgtype=0x2C0085,name=PBrowser::Msg_Destroy) Channel error: cannot send/recv

[Parent 17786] WARNING: pipe error (53): Connection reset by peer: file /builddir/build/BUILD/firefox-52.2.0/firefox-52.2.0esr/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 322 [Parent 17786] WARNING: pipe error (60): Connection reset by peer: file /builddir/build/BUILD/firefox-52.2.0/firefox-52.2.0esr/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 322 [Parent 17786] WARNING: pipe error (58): Connection reset by peer: file /builddir/build/BUILD/firefox-52.2.0/firefox-52.2.0esr/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 322 [Parent 17786] WARNING: pipe error (56): Connection reset by peer: file /builddir/build/BUILD/firefox-52.2.0/firefox-52.2.0esr/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 322 [Parent 17786] WARNING: pipe error (57): Connection reset by peer: file /builddir/build/BUILD/firefox-52.2.0/firefox-52.2.0esr/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 322

1. 1. 1. !!! [Parent][MessageChannel] Error: (msgtype=0x2C0085,name=PBrowser::Msg_Destroy) Channel error: cannot send/recv

[Parent 17786] WARNING: pipe error (64): Connection reset by peer: file /builddir/build/BUILD/firefox-52.2.0/firefox-52.2.0esr/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 322 [Parent 17786] WARNING: pipe error (74): Connection reset by peer: file /builddir/build/BUILD/firefox-52.2.0/firefox-52.2.0esr/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 322 [Parent 17786] WARNING: pipe error (72): Connection reset by peer: file /builddir/build/BUILD/firefox-52.2.0/firefox-52.2.0esr/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 322 [Parent 17786] WARNING: pipe error (70): Connection reset by peer: file /builddir/build/BUILD/firefox-52.2.0/firefox-52.2.0esr/ipc/chromium/src/chrome/common/ipc_channel_posix.cc, line 322

1. 1. 1. !!! [Parent][MessageChannel] Error: (msgtype=0x46001C,name=PContent::Msg_PreferenceUpdate) Channel error: cannot send/recv

1. 1. 1. !!! [Parent][MessageChannel] Error: (msgtype=0x46001C,name=PContent::Msg_PreferenceUpdate) Channel error: cannot send/recv

1. 1. 1. !!! [Parent][MessageChannel] Error: (msgtype=0x46001C,name=PContent::Msg_PreferenceUpdate) Channel error: cannot send/recv

1. 1. 1. !!! [Parent][MessageChannel] Error: (msgtype=0x46001C,name=PContent::Msg_PreferenceUpdate) Channel error: cannot send/recv

1. 1. 1. !!! [Parent][MessageChannel] Error: (msgtype=0x46001C,name=PContent::Msg_PreferenceUpdate) Channel error: cannot send/recv

1. 1. 1. !!! [Parent][RunMessage] Error: Channel error: cannot send/recv

1. 1. 1. !!! [Parent][MessageChannel] Error: (msgtype=0x2C0074,name=PBrowser::Msg_SynthMouseMoveEvent) Channel error: cannot send/recv

[Parent 17786] WARNING: FileDescriptorSet destroyed with unconsumed descriptors: file /builddir/build/BUILD/firefox-52.2.0/firefox-52.2.0esr/ipc/chromium/src/chrome/common/file_descriptor_set_posix.cc, line 22

1. 1. 1. !!! [Parent][MessageChannel] Error: (msgtype=0x2C0085,name=PBrowser::Msg_Destroy) Channel error: cannot send/recv