TIFF Viewer Extension
Extension stats
- storage
- webRequest
- webRequestBlocking
- tabs
- <all_urls>
Other platforms
Extension summary
The TIFF viewer extension will intercept a number of different requests for tiff images, capture the data and render it appropriately in the browser.
By hooking into the browser request we can detect most requests that would load a tiff image. Normally the browser would abort such requests since it cannot render the format. Instead we take over and load the image data. We can then use an in memory canvas element to render the image with the help of libtiff.js, a javascript port of the C TIFF library. The canvas element then gives us a image URL containing the decoded data as a PNG image that we can redirect to instead.
The end result is that tiff images are intercepted, turned into PNG images and end up rendering just fine in the browser.
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Extension safety
Risk impact
TIFF viewer requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk impact analysis details
- Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood
We don't have sufficient data to confidently determine the risk likelihood of TIFF viewer. Use it at your own risk.
Risk likelihood analysis details
- Critical This extension is not longer available in the store
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