Is anyone else experiencing insanely slow address bar autocomplete behaviour after updating to Safari 26 on macOS 15.7 Sequoia (ie not Tahoe)? Infuriating!
@eurozerozero Glad I'm not alone—maddening!
@willcroft Yeah. And after a while, even just clicking on the address bar to make it active becomes sluggish for me.
@eurozerozero Same, everything just slows to a crawl and eventually letter-by-letter typing starts to beachball. Will report back if I find a culprit/fix. Hoping for a speedy 26.0.2. Perhaps @jensimmons would know if this is a known bug or worth reporting?

@willcroft @jensimmons I ended up submitting this as FB20414621 because it seems to be getting worse. Today Safari 26 even crashed after beachballing for a long time while trying to type in the address bar.

The bad performance seems to get worse in relation to how long Safari has been open or how much browsing has been done, so initially everything seems fine, but after a few hours it sometimes takes seconds to respond (on an M4 Pro!).

#FeedbackAssistant #Safari

@willcroft @jensimmons @nicolas17 I’ve added reproduction steps to FB20414621.

I can 100% reliably cause Safari 26.0.1 on macOS 15.7 to slow down and eventually close by repeatedly typing and backspacing in the address bar.

Even once I stop typing and it eventually goes back to 0% CPU, the whole browser is then sluggish when doing things like clicking into the address bar or maximising the window. Continuing to type/backspace causes it to lock up and close.

#FeedbackAssistant #Safari

@eurozerozero @jensimmons @nicolas17 Thanks for the diagnosis—reproduced! 🙏🏻 For me, it's specifically the com.apple.Safari.History process though, which makes sense if it's trying to match results. I have history retention set to 1 year.
@willcroft @eurozerozero @nicolas17 Thank you for filing the issue! I've pinged folks about it.
@jensimmons Thank you, Jen!