`window.open`'d `google.com/url` URIs return “Redirect Notice” on `firefox-nightly-149.0a1`, but not `chromium-145`.

[RokeJulianLockhart]

URL: https://www.google.com/url?sa=t&source=web&rct=j&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FExample.com&ved=0CBYQjRxqFwoTCKDHraeR7ZIDFQAAAAAdAAAAABAI&opi=89978449

https://www.google.com/url?sa=t&source=web&rct=j&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FExample.com&ved=0CBYQjRxqFwoTCKDHraeR7ZIDFQAAAAAdAAAAABAI&opi=89978449

Browser / Version: Firefox Nightly 149
Operating System: Linux

Tested Another Browser: Yes:

** Description:**

“Redirect Notice” appears with new Firefox profile, ¹ but not with Chromium.

Steps To Reproduce:

As reddit.com/r/firefox/comments/1pgpdis/comment/ntnoycw describes, when I visit javascript:window.open('https://www.google.com/url?sa=t&source=web&rct=j&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FExample.com&ved=0CBYQjRxqFwoTCKDHraeR7ZIDFQAAAAAdAAAAABAI&opi=89978449'), from https://www.google.com/search?client=firefox-b-d&hs=D739&sca_esv=ea0bf85f729d5e5e&sxsrf=ANbL-n607N2R75cqEfjqEgTdfVH8SgvXIA:1771764927256&udm=2&fbs=ADc_l-aN0CWEZBOHjofHoaMMDiKpaEWjvZ2Py1XXV8d8KvlI3vWUtYx0DZdicpfE1faGYemg2KC4yuMPyQlIvlWqq2At2yMvCZgi_bwXXU0sv2NZz1ci8vvXN7qvH5d5H0L2gzDVa8EQXPOe03G6oWgM1i7mQuRVJZMw63JPM9jizs0p2p0CKnW3p6_iMTGuk3xLMjYD_G_SYUdHsIciM1dHUgViogBHUA&q=example&sa=X&ved=2ahUKEwjx7PTYku2SAxWFU0EAHZ5EKsUQtKgLegQIWRAB&biw=2308&bih=1297&dpr=1#sv=CAMSVhoyKhBlLWtvRUdXWlZpME43UVpNMg5rb0VHV1pWaTBON1FaTToOb1ByRjg3VURkWk9rbU0gBCocCgZtb3NhaWMSEGUta29FR1daVmkwTjdRWk0YADABGAcgu4jLjA0wAkoIEAIYAiACKAI, via a new about:profiles entrant ¹ in firefox-nightly-149.0a1-20260221090124.x86_64, I observe data:text/html;charset=utf-8;base64,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. However, chromium-145.0.7632.75-1.fc43.x86_64 does not reproduce this.

**Screenshots: **

Footnotes

1. crash-stats.mozilla.org/report/index/f840aff7-52b6-40bb-98da-fd97d0260222 ↩ ↩²

[RokeJulianLockhart]

Please allow me to transfer this to MBZ if confirmed (unless some very niche and specific things need to be done to the resultant issue), because I've editbugs there.

[softvision-raul-bucata]

please see: https://bugzilla.mozilla.org/show_bug.cgi?id=2018534

Closing as moved.

Notes:
For future refrence, please use the format available on webcompat.com, without altering or editing the fields. Reason: we are using an addon to move issues to Bugzilla, and editing the fields will show up as empty.

[qa_08/2026]

[RokeJulianLockhart]

For future refrence, please use the format available on webcompat.com, without altering or editing the fields. Reason: we are using an addon to move issues to Bugzilla, and editing the fields will show up as empty.

@softvision-raul-bucata, can I submit a PR to webcompat-bug-report.md, to change it? I ask because I've no option to enter multi-line values, and, more importantly, it's not even vaguely accessible to a screen reader.

[softvision-raul-bucata]

Sure, we can try that

[inv_10/2026]

[RokeJulianLockhart]

@softvision-raul-bucata, pull/190965 should provide this. Thanks.