Google’s WebP image format to be supported by Firefox and Edge.

Google’s WebP image format to be supported by Firefox and Edge.

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Apple’s Safari browser is the last without WebP support.

WebP is an image compression format that was first released in 2010 and it was offered as an alternative to the PNG, JPEG, and GIF. It supports good compression, transparency, and animations, and its early benchmarks look promising – WebP can cut down the size of PNG files up to 45 percent while the GIF’s can be reduced up to 64 percent.

This lossy and lossless image compression was born as a derivate project from Google’s work on the VP8 video format. Initially, the format was supported only by Google’s Chrome browser. Gmail, Google Search, Picasa, Google Play and other major Google sites were modified to use WebP and defaulted to existing image formats if users’ browsers didn’t support it.

Opera and Pale Moon also adopted it after that but the news is that this week, the Microsoft’s Edge browser released support for WebP as well. Firefox is expected to add it next year while the Apple’s browser is the last without WebP support so far.

Two years ago, in 2016, both Mozilla and Apple showed initial interest in supporting the WebP format but, after some internal benchmark tests, they backed off. 

Mozilla’s engineers decided that the WebP format didn’t show any significant advantage over the newly optimized JPEG library that launched at that time.

Apple initially added WebP support in  iOS 10 and MacOS Sierra, but later decided to replace it with HEIF, an image format based on the HEVC video compression standard (also known as H.265 and MPEG-H Part 2).

Back then, many considered the rejections of Mozilla and Apple as the end of WebP, as without the support from major browsers and OS vendors, no image format would be able to make it. This year, however, out of nowhere, WebP format came back to life with the latest version of the Edge Browser that was launched this week. The new Windows 10 October 2018 Update came with a full support of WebP in build 17763+.

What is more, last Friday, CNET spotted some new activity in the WebP’s topic on Mozilla’s bug tracker.  Here is what a Mozilla’s spokesperson confirmed to CNET:

“Mozilla is moving forward with implementing support for WebP”

Firefox for desktop and Android are expected to have WebP support in the first half of 2019. Firefox for iOS, however, won’t support it since it works on Safari’s WebKit engine, not on Mozilla’s Gecko. 

Apple’s Safari browser is, so far, the last major browser, which has not announced any plans to implement WebP yet. But with support from almost all other major browsers, as well as popular image editing software, the WebP format sees a bright future.


About the author

Lidia Howler

Lidia is a web content creator with years of experience in the cyber-security sector. She helps readers with articles on malware removal and online security. Her strive for simplicity and well-researched information provides users with easy-to-follow It-related tips and step-by-step tutorials.


  • That’s great news! WebP is the future of image optimization. Most of my website users use Firefox and Edge so I see no other solution that to use Magento 2 WebP Images extension ( on my website to convert all old JPG and PNG images to WebP. Now my website works much faster due to the WebP small image size and great quality. That’s really great news more browsers start to integrate with this WEBP format.

  • I tried several solutions for adding WebP images to my Magento 2 stores.
    All of them had issues, some images not converted, others converted but breaking my site, issues with Media Gallery, issues with FPC, not working with lazy loading, you name it…
    Some where even quite expensive due to monthly fees.
    Now I am using this extension:
    And what can I say, it’s perfect and for sure the most advanced WebP extension for Magento! No issues at all, it just works and is highly configurable, easily worth every penny.

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