Firefox 99-100b3 lags when you move mouse pointer over tabs and Instagram notifications don't open
Open up about four or five tabs with video like YouTube, Twitch, etc. The video will lag when you move the mouse pointer over to the first tab. This bug has been around for a while. It does not occur with any of the other browsers. I just did a new installation of Windows 10.
Also Instagram notifications don't open when you click on them. This has also been an occurring bug.
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I wasn't able to reproduce this issue on my side. I had 6+ videos open in separate tabs and didn't notice any lagging when I moused over the tabs, or within the videos themselves.
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I've tried all of that before and recently, newly installed the OS. I also opened the windows before signing in to my profile. I was having the same problems with the last old install.
Okay what you have to do is, when all of the tabs are open wait a few seconds then quickly move the mouse pointer over to the first tab; I've done it many times and it lags. This does not happen with Brave or Edge