You might not be ready to commit to making Vivaldi the default browser right after installation, but after using the app for a bit, you’ll likely want to use Vivaldi as your main browser.
To set Vivaldi as the default browser app:
Most people prefer to continue were they left off the last time they used the browser, but if you have a different workflow, use Vivaldi Settings to make the browser open up with the set of tabs you want.
To start the browser with the same tabs every time you open it:
If you regularly join video calls via your browser, but have multiple web cameras attached to your computer (e.g. laptop’s built-in camera and an external camera), you can choose which one websites use by default.
To review and update camera settings:
chrome://settings/content/camera to the Address Field and press Enter. (Yes, it’s supposed to say chrome.)
Do you want to have control over when a video starts playing on a web page you’re visiting? If the answer is yes then you’re in luck, because Vivaldi gives you the power to control it.
Next time you load a web page where videos usually start playing immediately, you’ll need click Play when you’re ready to watch the video.
You can always delete all saved cookies from Vivaldi menu > Tools > Delete Browsing Data. But that will log you out of your accounts, reset your saved preferences, and more. To delete cookies from a specific domain, head over to Vivaldi Settings. This can be useful when a single website is causing you trouble and you think cookies might be the cause.
To delete a selection of cookies:
If you prefer to open a specific web page whenever you open a new tab or tap the 
home button, instead of the Start Page with your favorite bookmarks, Speed Dials, you can make the adjustment in the app’s settings.
Vivaldi menu > Settings > Web pages > Homepage.
Vivaldi 5.6 added a splash of color to Settings and divided the categories into groups for better discoverability. But as always, we’ve made it an option. If you prefer a more minimalistic look, you can disable the colors.
To return to the monochrome look:
Vivaldi Theme settings allow you to display your chosen color or a color of the active page on the Tab Bar or Navigation Bar (depends on your Color Overrides settings). While your chosen color is most likely perfect, colors from active pages can sometimes be too bright. If the vivid colors become too distracting, you can fix that in Theme settings.
To adjust accent color saturation:
The smaller the value the more subdued the color will be.
By default, when you click on the Go to homepage button on the Address Bar, you’ll be taken to the browser’s Start Page. If there’s a web page that you visit all the time, you could set that as the homepage instead. To do that:
If dragging a slider, for example, to zoom in on a web page doesn’t feel quite right for you, go to Settings > Appearance, enable Use Buttons in Range Control and see if that works better. Then you can do the changes by clicking the + and – buttons.
Range controls are used for the following settings:
By default, Vivaldi Settings open in a new window. If you would prefer Settings to open in a Tab like web pages and other internal pages:
Then, the next time you open Settings, they’ll be in a tab instead of window.
When you use the Zoom slider/buttons or shortcuts to change a tab’s zoom level, the value jumps by 10 (90%, 100%, 110%, etc.). To set a custom value:
Behind the 
padlock icon on the left side of the Address Bar, you’ll find a lot of useful information about the website you currently have open.
The padlock indicates that the connection is secure. But you may also see the following icons in place of the padlock:
– your connection to the site is not private and you should not share any sensitive information (e.g. passwords) with the site.
– your connection is not fully secure and you should be careful about sharing any sensitive information (e.g. passwords) with the site.
– you’re viewing Vivaldi’s internal page (e.g. vivaldi://about) or a local file.
– on Start Page, instead of the Site Info button, you’ll see a search icon.By default, when you change the zoom level, it applies to the tab you have open, so all websites you visit in that tab will have the same zoom level, but if you open the website in a different tab it will have the default or that tab’s zoom level. If you prefer to set the zoom level for websites instead of tabs:
Then, no matter when you visit the website, it’ll have the zoom level you set for it in the past.
