Quick fix: Right-click any open tab in Edge → Turn on vertical tabs. The horizontal tab bar moves to the left side as a vertical list. To revert: right-click any tab → Turn off vertical tabs.

Vertical tabs were a feature you had — tab list along the left side of Edge instead of across the top. After a Edge update, the option seems gone. The feature wasn’t removed; the toggle just moved. It’s now in the tab context menu rather than as a button in the toolbar.

Symptom: Edge vertical tabs option no longer visible; want to re-enable.
Affects: Microsoft Edge on Windows 11 (and Windows 10).
Fix time: ~2 minutes.

What causes this

Edge moved the vertical tabs toggle around in different versions. In older builds it was a dedicated toolbar button; in newer builds it’s in the tab’s right-click context menu and in Settings. The feature itself is still present and functional — just accessed differently.

Method 1: Enable via tab right-click

The current standard.

Open Edge. Make sure at least one tab is open.
Right-click anywhere on the tab strip (on a tab or empty space between).
The context menu appears. Look for Turn on vertical tabs. Click.
The tab bar moves to the left side of the Edge window. Each tab is a row in the vertical list.
The vertical bar can be collapsed (click the left-arrow icon at top) for a compact mode showing just favicons.
To turn off: right-click any tab in the vertical list → Turn off vertical tabs.

This is the right path.

Method 2: Enable via Edge Settings

Alternative for users who prefer Settings UI.

Open Edge → three-dot menu → Settings.
Click Appearance in the left sidebar.
Find Customize toolbar section.
Look for Show vertical tabs button. Toggle On.
A vertical tabs button now appears in the toolbar (left side). Click it to toggle vertical mode.
Alternative: In Settings → Appearance, scroll to find Vertical tabs setting if present in your Edge version.

This adds the toolbar button back if you prefer one-click toggle.

Method 3: Use Edge command-line flag for forced vertical tabs

For users who want vertical tabs persistently with no chance of accidental disable.

Right-click your Edge shortcut (Desktop, Start Menu, or pinned to Taskbar).
Properties. In the Target field, append --force-vertical-tabs after the existing path. Example:
```
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --force-vertical-tabs
```
Click Apply.
Launch Edge from this shortcut. Vertical tabs are forced on, can’t be turned off via UI.
Useful for shared PCs where you want consistent UI regardless of user state.

Persistent vertical tabs via command-line.

How to verify the fix worked

Vertical tab list appears on the left side of Edge.
Each tab is a row with favicon and title.
Click a tab — it switches normally.
Open new tab via Ctrl + T — it adds to the bottom of the vertical list.

If none of these work

If vertical tabs are not available at all, three causes apply. Edge version too old: vertical tabs require Edge 89+. Update Edge via Settings → About Microsoft Edge. Edge enterprise version: some enterprise builds disable certain features via policy. Check edge://policy for restrictions. Corrupted Edge profile: in rare cases the profile’s UI state is broken. Reset via Settings → Reset settings → Restore settings to defaults. Vertical tabs are then accessible again. For users who specifically need a left-side tab list and Edge can’t provide it, Brave and Vivaldi both have similar vertical tabs features with arguably more polish.

Bottom line: Vertical tabs toggle moved to the tab right-click menu — right-click any tab → Turn on vertical tabs. Or enable the toolbar button via Settings → Appearance.