# Tor Alpha Browser Window Responsive Issue

**URL:** https://forum.torproject.org/t/tor-alpha-browser-window-responsive-issue/3371
**Category:** Tor Browser Alpha Feedback
**Created:** [May 19, 2022, 9:11pm UTC](https://forum.torproject.org/t/tor-alpha-browser-window-responsive-issue/3371 "2022-05-19T21:11:31Z")
**Posts on this page:** 5
**Page:** 1

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### Author: ![soggytech](https://forum.torproject.org/letter_avatar_proxy/v4/letter/s/ce73a5/32.png) [@soggytech](https://forum.torproject.org/u/soggytech)
#### Post date: [May 19, 2022, 9:11pm UTC](https://forum.torproject.org/t/tor-alpha-browser-window-responsive-issue/3371/1 "2022-05-19T21:11:32Z")

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Tor Alpha browser window responsive issues when moved to only take up half of screen or fullscreen.

Opened Tor Alpha browser, then moved it to side of my desktop for half view and made it fullscreen.

I expected the alpha browser to be in full window vs a weird portion.

Security level standard.

Tor Browser Alpha 11.5a9 64bit

Windows 10 64bit Home

Razer Blade Stealth 2020

Installed directly from Tor website.

 ![image](https://forum.torproject.org/uploads/default/original/2X/6/6cc472762e98128ac694a226a4744fb681d6bd0d.png)

 ![image](https://forum.torproject.org/uploads/default/original/2X/3/3cb1186e3e1d74eb959aff9e1385f3395c7d98ed.png)

 ![image](https://forum.torproject.org/uploads/default/original/2X/e/eebdfd472a01e6f33f6c3588e6715d28eaf731ed.png)

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### Author: ![donuts](https://forum.torproject.org/user_avatar/forum.torproject.org/donuts/32/7100_2.png) [@donuts](https://forum.torproject.org/u/donuts)
#### Post date: [May 19, 2022, 9:31pm UTC](https://forum.torproject.org/t/tor-alpha-browser-window-responsive-issue/3371/2 "2022-05-19T21:31:43Z")

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Hi @soggytech, the feature you’re seeing here is known as letter-boxing, and is present in both Tor Browser Alpha and Stable. It’s intended to protect you against fingerprinting based on your content window size by grouping Tor Browser users together into a set of common sizes using margins.

You can read more about it here: [What are grey bars on resized Tor Browser window? | Tor Project | Support](https://support.torproject.org/tbb/maximized-torbrowser-window/)

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### Author: ![soggytech](https://forum.torproject.org/letter_avatar_proxy/v4/letter/s/ce73a5/32.png) [@soggytech](https://forum.torproject.org/u/soggytech)
#### Post date: [May 20, 2022, 3:16pm UTC](https://forum.torproject.org/t/tor-alpha-browser-window-responsive-issue/3371/3 "2022-05-20T15:16:45Z")

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Agh yes apologies about that.

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### Author: ![donuts](https://forum.torproject.org/user_avatar/forum.torproject.org/donuts/32/7100_2.png) [@donuts](https://forum.torproject.org/u/donuts)
#### Post date: [May 20, 2022, 3:57pm UTC](https://forum.torproject.org/t/tor-alpha-browser-window-responsive-issue/3371/4 "2022-05-20T15:57:41Z")

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No worries, thank you for testing Tor Browser Alpha!

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### Author: ![system](https://forum.torproject.org/uploads/default/original/2X/d/d3424bed34f4ec18b2e99178c2801ba6dfb655d6.png) [@system](https://forum.torproject.org/u/system)
#### Post date: [May 20, 2022, 5:58pm UTC](https://forum.torproject.org/t/tor-alpha-browser-window-responsive-issue/3371/5 "2022-05-20T17:58:07Z")

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