To fix the Keyring issue for Vivaldi (same for Google Chrome)

Add this to the end of the command line in your launcher :

--password-store=basic

Have you ever wondered how would you go about turning your computer off automatically?
You watch movies in bed or listen to some music before you go to sleep and would like to be able to shutdown your computer after a specified amount of time?
ShutdownScheduler is for you.
You can set your computer to automatically shut down after a specified amount of time (from 5 minutes to 5 hours). You can easily launch the application from your Desktop after installation, and can only use your mouse to control your timer, no keyboard input required, (tested in Mint/Ubuntu Cinnamon, Gnome desktops, and KDE/plasma, feel free let me know if you have managed to test it on other environments as well, and I will update my description )
This program comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it under GNU General Public License.

SHA256SUM for the .TAR.GZ file is :
00afd83f93276946855e57b8c1269fa8277cf783d260bdef612a1e21f99fcba4 Shutdown_Scheduler_v1_2.tar.gz

SHA256SUM for the .DEB installation package is :
480690a4da64f6de7a65e451537bd4f1e3c076f33a498722a339c31ed19e195f shutdownscheduler_1.2-1_amd64.deb

Click here to download Shutdown Scheduler version 1.2 for Linux (.DEB - 11,748 bytes)

If you experience issues with your desktop after you have removed your komorebi installation, run this command in the terminal :

 gsettings set org.nemo.desktop show-desktop-icons true

This command will enable you to right click on the desktop and also restore your missing icons as well.

If you do not have root password set in Linux Mint, and you have managed to forget your user password, you can recover your system by setting root password for your system, here is how to do it.

Reboot your Linux installation, and press and hold the "Shift" button on your keyboard.

In the GRUB menu select "Advanced Options for Linux Mint" and press Enter

on the next screen select the (recovery option) and press Enter

You will have to choose the "root - Drop to root shell prompt" option

if you press Enter here you'll get to the root shell prompt. Because we need write permissions here, let's re mount our system root folder with the following command :

mount -n -o remount, rw /

The next step is to change our "root" password by using the following command :

passwd root

Make sure you are using a secure password for your root account as it's extremely important to keep this account secure and well protected.

Now re-boot and will be able to use your system with your new "root" password.

To restartyour system, simply type this command in your terminal and press Enter

reboot

Redshift is a free software for Linux, automatically adjusts your screen's colour temperature based on your location and the time of day.

We can install RedShift from our Software manager, you can find it under the name Redshift-gtk.

Click on the "Install" button, and you're done.

Clicking on this icon on your taskbar will enable you to easily control redshift.

To install RedShift from your terminal, use the following command :

sudo apt install redshift

Lets fix screen flickering issues in Vivaldi under Linux.

Launch your Vivaldi browser, then

click on Tools/Settings/Appearance
tick a box for "Use Native Window"

Restart your browser.

This has been tested under Ubuntu 16.04 and Linux Mint Cinnamon 18.3