Optimizing Relume for Firefox: Addressing Stability and Performance Issues

·Sep 29, 2025 05:45 PM·

Hey team just something to note. Relume in Chrome works well, but in Firefox, its very unstable. Very laggy. With all the changes being done in the ad blockers and Manifest v3, a lot of developers have been moving from Chrome to Firefox or another variant that doesn't support Manifest v3 which is Google saying no more to Ad Blockers. Can we start thinking about some ways to optimize for Firefox, get away from the Electron side which causes issues in itself.

3 comments

· Sorted by Oldest

Matt J.
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Not sure about firefox but it sounds like we’ll be potentially adding support for Safari soon. But appreciate the feedback. Certainly something we should take a good look at.
Michael R.
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Hey Matt J. sounds good. Anything to get away from Electron. Electron is a CPU/GPU performance killer. ARM processors like the M4 will always struggle with Electron. I have an M2 Ultra and the performance is night and day without Electron. I know its a full blown coding model to do, as your getting away from wrapping everything in HTML, CSS, and JavaScript but Electron is so bad. Even Slack is built on Electron, and performance is terrible. Same with Canva. Apps that are not built in Electron like Superhuman for example, tend to really perform well. Firefox isn't an Electron browser, so it shines on performance
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Michael R.
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Hey Matt J. just to give you some feedback and an update on Mac's specifcially. So Electron uses the "CursorUIViewService" which has been a bug for Apple for years, the only way to fix it is to keep the service from starting up which means disabling caps lock and stuff. Very odd bug, but many apps like Slack and Canva use this with thier Electron code, when this is on, it slows typing to a standstill and sometimes even crashes to the point your typing and not moving an inch. Again this is due to Electron code, not anywhere else. This is why so many developers are moving away from it, its a just a pain in the arse
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Optimizing Relume for Firefox: Addressing Stability and Performance Issues | Relume Community