Edge 89 introduced two features for different frustrations: vertical tabs make a crowded tab row easier to scan, while Startup boost prepares browser processes in the background so Edge can launch faster. Microsoft reported a 29%–41% startup-time improvement with Startup boost enabled versus disabled in its Stable-channel experiment; that is a historical Microsoft result, not a promise for every PC.
What changed in Microsoft Edge 89?
Microsoft announced these Edge 89 features in March 2021. The announcement date is not the release date for every Edge 89 maintenance build: Microsoft’s archived release notes include version 89.0.774.54 dated March 13, followed by additional builds later that month and in April.
The two features solve separate problems. Vertical tabs change how you find and switch between open pages. Startup boost changes how Edge prepares to launch.
How do I enable vertical tabs in Microsoft Edge?
Use the vertical-tabs icon at the upper left of the browser frame to move the tab list from the horizontal strip into a side pane. Microsoft’s Edge 89 release notes describe the feature as placing tabs at the side, where longer site titles and vertically aligned icons make it easier to scan, identify, and switch to the page you want.
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Why move tabs to the side?
When many tabs are open, horizontal tabs shrink until their titles are cut off and some controls disappear. A side pane gives titles more room and arranges tabs vertically, making it easier to distinguish pages without relying only on their icons. It is a tab-management option, not a way to make pages or the browser launch faster.
How do I make Edge start faster?
Check Startup boost in Edge’s system settings. Microsoft Support currently directs users to Startup boost settings and guidance; the setting is available at edge://settings/system/manageSystem. There you can check whether it is enabled or toggle it if the option is available.
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What Startup boost does
Startup boost keeps minimal Edge processes ready in the background while the browser is closed. Microsoft says this lets Edge start more quickly when launched. That trade-off means processes remain in the background; the cited feature descriptions do not establish a battery, CPU, or memory benefit for Startup boost.
Who may be eligible
Microsoft Support’s current guidance describes eligibility as conditional, based on factors including device memory and disk, regular Edge use, and conflicting extensions. Its documented eligibility guidance excludes Windows 10X and Windows Server. These are present-day support criteria, separate from the Edge 89 feature announcement, and Microsoft may update them.
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What does Microsoft’s 29%–41% startup figure mean?
In a March 4, 2021 Edge performance post, Microsoft reported a 29%–41% improvement in startup times in an experiment comparing Edge Stable with Startup boost enabled against the same feature disabled. A March 2 Microsoft post also described 29%–41% faster startup after rebooting on Windows 10, based on internal Microsoft Edge Stable-channel results.
These figures are Microsoft’s reported historical results, not an independently verified benchmark or a guaranteed improvement on an individual device. The posts do not provide enough experiment detail to establish that the same range applies across hardware, Windows versions, usage patterns, or current Edge builds. The 2021 announcement says the improvements were available in the Edge 89 Stable channel; it should not be read as current performance guidance.
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Which feature should you use?
| Feature | Useful when | What it changes |
|---|---|---|
| Vertical tabs | Your horizontal tab row is crowded and page titles are hard to distinguish. | Moves the tab list into a side pane for scanning and switching. |
| Startup boost | You want Edge to launch more quickly and the option is available for your device. | Keeps minimal browser processes ready in the background while Edge is closed. |
You can use either feature independently; they address different tasks. Neither requires buying a computer, memory, storage, peripheral, or printed guide.
Quick Recap
Best Value
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- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
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Sources
- Microsoft Edge Blog: Edge 89 performance improvements, March 4, 2021
- Microsoft Learn: Microsoft Edge Stable release notes archive
- Microsoft Support: Get help with startup boost
- Windows Experience Blog: Microsoft’s March 2, 2021 Edge post
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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