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Poor quality in Gif images

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Hey guy, I'm a web dev and currently i'm facing an issue with gif images in my webapp

I'm having a bad moment trying to figure out why gif images look really poor quality in firefox but look great in Chrome.

I uploaded two screenshots. the first one from chrome and the last one from firefox and as you may notice there is a big difference between both.

can you explain to me what is happening and how could i solve this issue? i really need to..

Thanks in advance.

Hey guy, I'm a web dev and currently i'm facing an issue with gif images in my webapp I'm having a bad moment trying to figure out why gif images look really poor quality in firefox but look great in Chrome. I uploaded two screenshots. the first one from chrome and the last one from firefox and as you may notice there is a big difference between both. can you explain to me what is happening and how could i solve this issue? i really need to.. Thanks in advance.
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I'm puzzled why the Firefox image is so blotchy. Is that specific to your web app or do you see it with GIF images on other sites as well?

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Honestly, i only have seen this on my web app so far. Just so you know, Users can upload videos and we create the gif image from this video.

Would that have something to do with this problem?

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I assume the video-to-GIF conversion runs on the server, so the results should (in theory) be the same regardless of browser. But it's possible the converter uses encoding that looks better in some browsers than others. Do they have a demo site where you could check on that?