When you have different accounts on the same websites or services, it can often become a hassle. The reason is that your browser can only save one set of cookies and local data for each domain. So if you use different accounts you need to login repeatedly as you switch between them. You can also use a private / incognito window but you still have to login every time you close it.
To solve this problem permanently you can use profiles in your browser.
Profiles in Firefox
In Firefox open the site: about:profiles
Add a new profile there while still keeping the default profile the same.
If you want to start a browser using your new profile use:
firefox -P new_profile
If you want to create a shortcut on windows, the target will then become:
"C:\Program Files\Mozilla Firefox\firefox.exe" -P new_profile
You can add several profiles and each profile will be completely separate, have its own UI and browser settings and also use it's own set of cookies and local data.
Profiles in Chrome
In Chrome you can add a new profile (aka user) by clicking on the person icon (You) on the top right and select + Add
.
Here you can also switch profiles. When you add a profile Chrome asks if you want to create a shortcut on the desktop (Windows).
The target will look like this:
"C:\Program Files\Google\Chrome\Application\chrome.exe" --profile-directory="Profile 1"
Profiles in Microsoft Edge
Basically the same as Chrome.
Target will be like this, e.g.:
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --profile-directory="Profile 1"