TorBrowser crashes at riot.im/app

TorBrowser crashes with this dmesg output:

[  442.940993] Chrome_ChildThr[1759]: segfault at 0 ip 000055676947f225 sp 00007e4ef8cfe470 error 6 in plugin-container[55676947a000+1b000]

Steps to reproduce:

1. go to https://riot.im/app
2. login to account (can be new account)
3. wait about 15 minutes

At least these versions affected:

• TorBrowser Linux 7.0.7
• TorBrowser Linux 7.0.8
• TorBrowser Linux 7.5a6

Trac:
Username: user