Default export not found

[Sinphy]

Describe the bug
on loading any page, an error message will pop up saying
"There was an error in initializing security header generator:
Default export not found"

Screenshots

Browser
Firefox Nightly 152.0a1

Links
all pages (home, posts, profile, notifications etc.)

OldTwitter version
1.9.6.6

[kadmasu]

same with me on brave

[carolmaw]

also experiencing this issue on firefox developer edition

[hannahbueno45-ui]

same here, using chrome

[dynastzilla]

also experiencing this issue on chrome developer edition

[Amyi1]

same on firefox dev