Ubuntu - no wireless extensions / No wireless connections appeared to enable

Ubuntu - no wireless extensions

If you are using ubuntu and you have enabled wireless network, your wireless is working fine for other devices but ubuntu does not show wireless connections.

If you run command iwconfig in terminal and it shows no wireless extensions.

Here is solution for you.

Install following packages in your ubuntu. Run the command in terminal.

$ sudo apt-get install b43-fwcutter firmware-b43-installer

Restart ubuntu. Now you should be able to see wireless connections in notification area.
Run command iwconfig.

Note : Check if a wireless card has been implemented in your system.

# lspci | grep "Network controller" 

If there is no output, it means it is not implemented yet.

Thunderbird - No signature in your forward / reply emails

Thunderbird - Add signature in your forward / reply emails

Open  Composition & Addressing in Thunderbird.

Edit > Account Settings > Composition & Addressing

Now check these two options.

• Include signature for replies
• Include signature for forwards

Now your signature will be appeared in your replies and forwards.

Thunderbird Error - Your thunderbird profile cannot be loaded. it may be missing or inaccessible

Your thunderbird profile cannot be loaded. it may be missing or inaccessible

To remove this error, open .thunderbird directory inside your home directory.

# cd ~/.thunderbird

Now remove file profiles.ini

# rm profiles.ini

Restart Thunderbird.