The Kagi for Safari 2.2.3 search extension for Safari 26.0 on macOS Tahoe 26.0 stopped working

jlcolema

What happened?

When searching from the Safari search bar, I am taken to the sign-in page for Kagi. After a few seconds, it then automatically redirects me to the Kagi search page without the results of what I searched for.

How did it happen / Steps to replicate the issue

Search for something from Safari's search bar.
After submitting a search, it will redirect me to the sign-in page for Kagi, asking me to sign in. I am already signed in, so I do not do anything here.
After a few seconds (and not attempting to sign in), the page automatically redirects me to the start page for Kagi search, without the results of what was searched for. It's as if nothing has been searched for yet.
While on the Kagi search page, it shows that I am still signed in to my Kagi account.
While on the Kagi search page, if I search for something from Safari's search bar, the extension works correctly.
Opening a new tab and repeating steps 1-5 again causes the same issue.

I've tried disabling/re-enabling and uninstalling/reinstalling the extension, but the issue still occurs.

Operating system and software

OS: macOS Tahoe 26.0
Browser: Safari 26.0
Extension: Kagi for Safari 2.2.3

Additional Notes:

This issue only started occurring after the upgrade to macOS Tahoe 26.0. While on macOS Sequoia, everything worked correctly.
No settings within Safari have been changed with the upgrade from Sequoia to Tahoe.
Three other extensions are active, but not in use for kagi.com: 1Blocker, Stop the Madness Pro, and Userscripts.
I updated to macOS Tahoe on the day it was available, but have only noticed this issue occurring within the past few days.

When searching from the Safari search bar, I should be taken to the Kagi search results page with the results of what I searched for.

jlcolema

Update

I looked in to this a little further, and it seems that the Userscripts 4.8.2 extension (macOS App Store, Github repository) is causing the issue.

With it deactivated, Kagi for Safari works as expected.

int3h

I’m also having this problem with Kagi and the Userscripts extension. For me, it manifests as my search term being changed to the previous thing I searched for. For example, if I search “cows” using the address bar and then later search “pigs” in the address bar, the Kagi login page flashes, then I quickly am shown the search results for “cows”. (It’s not just the results, the whole page acts like I searched for “cows”.)

Weirdly, I only have the Userscripts extension enabled for a few pages (none of which are Kagi or the placeholder search provider, DuckDuckGo), and the Kagi extension is also only enabled for DDG and Kagi.com. They should never be running on the same page.

This is Kagi extension v2.2.8, Safari in iOS 26.0, with DuckDuckGo as my placeholder search engine.

RoxyRoxyRoxy

Hi, is this still occurring?