Created attachment 827577 [details]
about:support

After update to version 72 on tumbleweed, firefox has become painfully slow.
The problem did not occur with version 71.

example 1: google maps is almost unusable.
example 2: the graphics tests 4,5,6,7 on https://web.basemark.com/

Most importantly: If I download binaries for Firefox 72 directly from
https://www.mozilla.org, the problem does *not* occur, Firefox is as speedy as
usual.

The problem occurs even when starting with a new, clean profile (deleting
.mozilla in home directory).

The problem occurs on two different laptops.

about:support is attached (both for the version from the tumbleweed repo and
for the version directly from mozilla).