Vivaldi Mail helps you organize and manage all your mail accounts from a single location in the Vivaldi browser. To make it easier to differentiate your accounts, you can give each account a display name.
To add a display name to an account:
Grouping tabs into Tab Stacks is an excellent way to keep your tabs well-organized. If you want to turn multiple stacks into one, you can do that using drag-and-drop on the Tab Bar or Windows Panel.
To merge Tab Stacks:
If drag-and-drop doesn’t seem to work, go to Settings > Tabs > Tab Features > Tab Stack Options and make sure “Allow Stacking by Drag and Drop” is enabled.
Many modern operating systems have made it easy to tile different apps and windows on the screen.
To tile Vivaldi with other apps on Windows:
To tile Vivaldi with other apps on macOS:
On Linux, tiling windows and apps depends on the distro’s window manager, but many allow snapping to a tiled grid by dragging the window or using keyboard shortcuts.
You can change the sorting order of Mail messages separately in each view, but it’s always good to have a fitting default setting.
To change the default sorting order:
Scrolling through your long lists of messages isn’t really an option if you receive a lot of mail. That’s when the search field with its filters comes to the rescue helping you find the message you’re looking for.
To search for a message in Vivaldi Mail:
The options include:
Have you cumulated a set of tabs that you would now like to move to a new workspace? Instead of first creating a new workspace and then moving the tabs, you can also create a new space while you moving tabs.
To create a new workspace from open tabs:
Copying feeds you follow in other feed reader clients to Vivaldi is easy when the feeds can be exported as an OPML file. You can also move your subscribed feeds from one Vivaldi instance to another that way.
To import feeds:
Reduce memory usage by automatically hibernating tabs that haven’t been used in a while. This way, active tabs, such as those used for gaming or streaming, can run more smoothly.
To enable the Memory Saver:
On macOS, Vivaldi browser’s main menu is baked into the operating system, but on Windows and Linux you can access the main menu from the 
icon in the top left corner of the browser window.
If you wish, you can replace the Vivaldi icon with a more generic, so-called “Hamburger”, ☰ menu icon. To do that:
While viewing and editing your events and tasks in the Vivaldi Calendar you’ll probably need to check things in the past and future.
To do that, you can use the < and > buttons on either side of the “Today” button in the top left corner of the Calendar page or you can press the up and down arrow keys on your keyboard. But there’s a new and very convenient option available in the Vivaldi Calendar – using your mouse’s scroll wheel.
Scroll up to view previous time periods and scroll down to go to the upcoming ones. It works in all Calendar views from single-day view up to the year view.
Cycling through tabs using Keyboard Shortcuts or the scroll wheel of your mouse while holding down the right mouse button is a convenient way to switch tabs. In Vivaldi, you have the power to choose in which order the tabs are cycled through.
To make your choice:
Bonus! See how to enable the visual Tab Cycler in Tip #267.
If you’ve enabled Two-Factor Authentication for your Vivaldi account, then you need to use an app password when adding your account to mail and calendar clients, such as Vivaldi Mail and Vivaldi Calendar.
To generate an app password:
Everyone can find a way to open a new tab in Vivaldi that fits their habits. You can click the + button on the Tab Bar, go through the main menu, or use one of the many shortcuts. But there’s another lesser-known option.
When you have the Tab Bar on the side of the window or at the bottom, you can just double-click on an empty area on the Tab Bar and a new tab will open. When you have the Tab Bar on top, then a double-click will maximize the window or revert it to its previous size, but you can get double-clicks to open new tabs on a top positioned Tab Bar when you turn on Native Window from Window Appearance settings.
Vivaldi 6.7 introduced a new design to the browser’s main and context menus. Among other changes, each menu item is given more space (great for when your screen supports touch interactions). If you prefer the previous design, you can enable it with a quick setting change.
To enable compact menus:
