Fire Resizer

Fire Resizer

Display and set your browser width. Excellent for responsive web design and testing media queries. Includes keyboard shortcuts!

Fire Resizer promo image
What is Fire Resizer?

Fire Resizer is a Firefox add-on by Francesco De Stefano. This add-on has 86 daily active users and a good user rating of 4.00. The latest version, 2.1, was updated 3 years ago.

Stats date:
Users: 86 ▼ -2
Rating: 4.00 (5)
Version: 2.1 (Last updated: 2020-03-15)
Creation date: 2020-03-15
Weekly download count: 1
Firefox on Android: No
Manifest version: 2
  • storage
  • tabs
Size: 122.60K
Email: Click to see
URLs: Website
Risk impact: Moderate risk impact
Risk likelihood: Low risk likelihood
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Other platforms

Not available on Chrome
Not available on Edge
Add-on to resize the browser window.

With quick presets for mobile devices, check media queries or your mobile website with a single keystroke.  
You can set your own custom presets for your devices.  
Your presets will be synced across all devices currently logged into your account.

Keyboard Shortcuts
The extension allows for numerous keyboard shortcuts to speed up development:
* Ctrl + Right Arrow - opens the extension popup
* Up - manually increases browser width
* Down - manually decreases browser width
* Ctrl + 1-0 - resizes to saved preset
* Ctrl + Shift + 1-0 - resizes to the landscape/inverse of saved preset
* Ctrl + Esc - resets browser window to 1200x800
See more
Risk impact

Fire Resizer requires some risky permissions and may not be safe to use. Exercise caution when installing this add-on. Review carefully before installing.

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypass your security settings, and access your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Risk likelihood

Fire Resizer has earned a fairly good reputation and likely can be trusted.

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Browser Add-ons, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on, especially ones with higher risk impact and/or higher risk likelihood.

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User reviews
by Joris Rietveld, 2021-02-17

by a142857, 2020-12-23
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