Ubuntu – Where can I configure Chromium’s default command line arguments

Execute the following command in terminal,to change the default browser.

sudo update-alternatives --config x-www-browser

Sample output:

karthick@Ubuntu-desktop:~$ sudo update-alternatives --config x-www-browser 
There are 3 choices for the alternative x-www-browser (providing /usr/bin/x-www-browser).

  Selection    Path                    Priority   Status
------------------------------------------------------------
  0            /usr/bin/google-chrome   200       auto mode
* 1            /usr/bin/firefox         40        manual mode
  2            /usr/bin/google-chrome   200       manual mode
  3            /usr/bin/opera           90        manual mode

• Press enter to keep the default[*].

• Right now I have firefox as my default web browser.

• If i want google-chrome as default browser then I will type 3 and hit enter.

Note:

• If you want to configure a commandline browser,then you have to configure

  sudo update-alternatives --config www-browser

• Alternate way is to add the following line export BROWSER=/usr/bin/firefox to your ~/.bashrc

• Add the above line in the last,

  

Alternative GUI Method:

• You can also set the default browser in Gnome applications,type the following in terminal and press Enter gnome-default-applications-properties
• It will Open a Window.Now you can choose your preferred browser to set it default.

Thanks to python-gnomekeyring, this is relatively easy:

python -c "import gnomekeyring;gnomekeyring.unlock_sync(None, 'my password');"

Or as a proper script:

#!/usr/bin/env python
import gnomekeyring
gnomekeyring.unlock_sync(None, 'my password');

I think you don't need to install the package. But it can't hurt to try.

Keep in mind that storing your password on your hard disk is an immense security risk. You should be using this instead:

#!/usr/bin/env python

import gnomekeyring
import getpass

gnomekeyring.unlock_sync(None, getpass.getpass('Password: '));

You can save this script, for example, as unlock-keyring.py and then do the following:

sudo mv unlock-keyring.py /usr/bin/unlock-keyring
sudo chmod a+x /usr/bin/unlock-keyring

From then, you can always just type unlock-keyring and be prompted for a password. Don't do this with the version that contains your password.

You can replace None with the name of your keyring, e.g. 'session', if you want to unlock one that isn't the default.

I'm having a hard time testing this properly, so please let me know if it doesn't work and I'll take a look at it right away. Also let me know if it does work :-)