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Recensioner för WebP / Avif image converter

WebP / Avif image converter av Nullbrains

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Recension av AshiAshi
av AshiAshi, för 4 år sedan
I'd love to use this extension, from the looks of it it's incredibly convenient. For this reason, I've installed it - but none of the quality sliders are working for me. I can't move them at all, no matter what I try. For as far as I can tell if I read other reviews, maybe it's because I'm using Windows 7?

[Edited after reading the response of the developer]

Thank you for taking the time to test it. Your explanation is spot on and clarifies why I can't move the sliders. The only file types I want to convert, are .bmp and .webp ones and I've set both to be converted to .png files. The rest says 'Don't convert' (though I thought it was logical for their sliders not to move, I just didn't understand why the other 2 wouldn't). I get it now. (And just to be sure, I checked and noticed that if I say I want a file to be converted into a .jpg one, I'm able to move the slider just fine.)

Thanks again for your time, and for your response. It was helpful <3

Utvecklarens svar

postad för 4 år sedan
I have just tested the add on with firefox on windows 7. The sliders seem to work as they are supposed to. Please note that they only work for conversions to .jpg. png is a lossless format and therefore quality cannot be reduced thus the sliders are grayed out.

In other encoders you might be able to provide something like a compression level. This however changes the amount of compression applied to the image, and does not affect the image quality. Only the filesize is reduced or increased at the cost of encoding and decoding times, the content of the file will be the same. Changeing the compression level is not available in the firefox build in encoder en thus not provided.
123 recensioner
  • av Firefox-användare 18672258, för en månad sedan
    Doesn't work.
  • av Andreon, för en månad sedan
    just stopped working
  • av edenflare, för en månad sedan
    So far so good it works, don't know anything technical but it converts .avif to png format just right click on images and convert and then save location, don't know why .avif even exists it's a stupid format and firefox needs to fix this as I dont really like using alot of addons, it takes up memory in total, but this one is 5 star unless there's an issue in the future at some point.

    Programmer deserves donations for this so if you're rich donate to the guy and buy them some coffee and a snack.
  • av Seän Shepherd, för 3 månader sedan
  • av Remote, för 3 månader sedan
  • av JohnMcClane, för 3 månader sedan
    So far it runs smoothly in Firefox 115.17.0esr under macOS 10.14.7 Mojave.
  • av Squall, för 4 månader sedan
  • av gnulab, för 6 månader sedan
  • av Sixelona, för 7 månader sedan
    As an artist who needs to save images for references and is not a fan of converting WebP just to view them, this app is a life saver. Thank you.
  • av Firefox-användare 15046147, för 7 månader sedan
  • av Psythik, för 7 månader sedan
    So stupid that you now need an addon to do something that browsers have been able to do natively since the 90s: download an image in its original file format. Why, Mozilla, WHY!? Thankfully this exists, but it shouldn't have to.
  • av Sporitus, för 9 månader sedan
    Во-первых, эта приблуда просто не работает. А во вторых, конверция происходит не автоматически, а нужно выбирать отдельную менюшку по правой кнопке. Жутко неудобно
  • av Commanden, för 10 månader sedan
    Somewhere it doesn’t work, it downloads empty five kilobytes!

    So guess where it was downloaded and where it was not downloaded. A setup!


    https://img2.mixlib.me//manga/tensei-shitara-dai-nana-ouji-dattanode-kimamani-majutsu-o-kiwamemasu/chapters/1647438/013_B6Ch.jpg

    Utvecklarens svar

    postad för 10 månader sedan
    The image that you are trying to download is hosted on a server that uses some kind of hotlink protection. (you can only access it when you are active on certain webstites). unfortunately the nature of this addon makes it incompatible with these kinds of protection. instead of the image you got an error response that resulted in the empty file.
  • av Dill, för 10 månader sedan
    This is very useful! However, I really want this to have an option for "convert and copy to clipboard".

    Often, when I copy images onto storyboards, the service will compress larger images, destroying their utility for art.

    If this extension had a convert + copy button, I'd be able to easily upload the tiny WebP files instead, which aren't compressed.

    I know this works because I can do so manually, with `cwebp` on a terminal window. However, that's kind of slow, and it'd be super nice in this extension!

    Anyway, I love this extension. Thanks for helping my workflow 🥰

    Utvecklarens svar

    postad för 10 månader sedan
    Thank you for the suggestion, I have looked into the matter and unfortunately Firefox is currently not capable of programmatically copying a webp image to the clipboard. Only png and jpeg formats are supported.
  • av Антонина Зайцева, för ett år sedan
    все прекрасно работает!
  • av Firefox-användare 14855386, för ett år sedan
    Very useful & productive... best converter till now
  • av Firefox-användare 18390445, för ett år sedan
    Does not work for saving an animated webp as gif, it only saves the first frame as a still image.
  • av Predator, för ett år sedan
  • av Firefox-användare 13674814, för ett år sedan
    USELESS BCS IT CAUSES FIREFOX AND CHROME TO LAG! Use this command instead. I will: &format=original
  • av Firefox-användare 16596123, för ett år sedan
    definitely doesn't work on hitomi.la, probably doesn't work on a million other sites
  • av skincare, för ett år sedan
  • av Gabrielux, för ett år sedan
    Really good for quick image downloads, thanks
  • av Alex Mirnov, för ett år sedan
    AVIF is not converted. Example, from the site: hitomi.la

    Utvecklarens svar

    postad för ett år sedan
    Thank you for using this addon. I have investigated the matter. As far I can verify avif images are converted including those of the site you mentioned. However this site uses a protection to avoid hot linking. To avoid that other websites show images that they are hosting. This causes an issue since it also interferes with the download mechanism of the addon. Fixing this is hard since these kind of measures are site specific. However downloading them reopening and than converting works though this approach defeats the purpose of a single step solution.
  • av Firefox-användare 18176943, för ett år sedan
  • av Firefox-användare 18168874, för ett år sedan
    Opera ?