Crash: 3.4.5 linux binary, chrome dumps core

Author: asluizhCreated Nov 15, 2025Updated Aug 21, 2026
Labelshelp wantedneeds investigation

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Environment

markdown
- FlareSolverr version: 3.4.5
- Last working FlareSolverr version: 
- Operating system: Fedora 43
- Are you using Docker: No
- FlareSolverr User-Agent (see log traces or / endpoint): Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/142.0.0.0 Safari/537.36
- Are you using a VPN: No
- Are you using a Proxy: No
- Are you using Captcha Solver: No
- URL to test this issue: Prowlarr test connection ( POST /v1 body: {'maxTimeout': 60000, 'cmd': 'request.get', 'url': 'https://prowlarr.servarr.com/v1/ping', 'proxy': {}} )

Description

Version 3.4.5. After initial success on server start, binary crashes while testing Prowlarr connection. Also tried version 3.4.3, same result. Stack trace attached.

trace.log

Logged Error Messages

nov 14 22:32:32 htpc flaresolverr[45942]: 2025-11-14 22:32:32 INFO     Chrome / Chromium major version: 138
nov 14 22:32:32 htpc flaresolverr[45942]: 2025-11-14 22:32:32 INFO     Launching web browser...
nov 14 22:32:47 htpc flaresolverr[45942]: 2025-11-14 22:32:47 INFO     FlareSolverr User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safa>
nov 14 22:32:47 htpc flaresolverr[45942]: 2025-11-14 22:32:47 INFO     Test successful!
nov 14 22:32:47 htpc flaresolverr[45942]: 2025-11-14 22:32:47 INFO     Serving on http://0.0.0.0:8191
nov 14 22:33:00 htpc flaresolverr[45942]: 2025-11-14 22:33:00 INFO     Incoming request => POST /v1 body: {'maxTimeout': 60000, 'cmd': 'request.get', 'url': 'https://prowlarr.servarr.com/v>
nov 14 22:33:16 htpc systemd-coredump[46208]: [] Process 46102 (chrome) of user 964 dumped core.

Screenshots

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Source: FlareSolverr/FlareSolverr