Scenario: too many tabs

You have hundreds of tabs. The browser is slow, the tab strip is unreadable, and closing anything feels risky.

The goal is not to close everything. It is to get every tab into a place where you can find it again, so you can let go of it.

Step 1: Make it safe (2 minutes)

Open Side View and leave it open. From now on, Auto Saved keeps a backup.
Green power button → Save All. Now there is a full snapshot in Session Manager, whatever happens next.

Snowflake → Hibernate all other tabs. Memory drops right away. All tabs stay where they are.
Settings → Opening many tabs → Hold unloaded, so the next restart doesn't load hundreds of pages at once.

Duplicates: look for the colored DUP label on the right of tab rows. Hover one to see its copies shimmer. Close the extras.
Search: click the magnifier and type a site you no longer need, such as a shop or a news site. Close the highlighted tabs.
Dead trails: in the tree, a parent with many children is usually one rabbit hole. If it's finished, close it.

Give each window a name for what it is about. If a window is a mix, that's fine for now.
Drag tabs to the window they belong to. Drag onto a window's title to add them at the end.
Too mixed to sort? Right-click a tab → Move to new window and start a new pile.

For each window, decide:

Still working on it today?	Do this
Yes	Keep it open.
This week	Right-click the window title → Save and close window.
Someday	Save and close window, then in Session Manager drag it to Archive.
A few pages worth keeping	Right-click those tabs → Read later, then close the window.

Name a new window as soon as it has a purpose.
When something is done, save and close it, so it's not just sitting open.
Once a week, open Session Manager and clean up: archive, merge, delete.
Set Quick List length so Recent Tabs is enough to jump around without hunting.