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Lemmy emojis is now available on addons.mozilla.org!
(addons.mozilla.org)
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this post was submitted on 18 Feb 2026
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Chapotraphouse
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It's thousands of images some that are over 3mb which all must then be resized for display in the emojimart. It's not clear to me how the resizing is handled, I suppose it is inside browser.js which I can't make heads or tails of. Would go a long way to speeding things up if the emoji where resized on the server itself and failing that at least having them presized to the picker display size in the local storage (if they're not already).
The rezising is handled by the browser, just like any other image is resized when the height and width is different from the image itself.
browser.js is https://github.com/missive/emoji-mart
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I made a local page with all hexbear emoji to test and it seems to render at the same speed whether they are at native resolution or all resized to 50x50 so I guess that's out.
If you disconnect internet and restart the browser the extension shows no emoji at all. Perhaps it is fetching them from the internet in spite of the local storage?
It does for me,
of course, you have to have downloaded the images so that they are cached first.
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They are definitely downloaded first, they still show up after disconnection while the browser remains open and then disappear on browser restart. This is using librewolf, maybe it handles local cache differently than firefox?
I believe Librewolf disables cache.
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I don't know if this is helpful but I have discovered that my page with every hexbear emoji which is snappy on librewolf is very slow on chromium and causes it to crash..