Keepassxc-browser: Keepassxc-Browser is "causing Firefox to slow down"

[CosmicToast]

Expected Behavior

Keepassxc-Browser does not cause any significant slowdowns.

Current Behavior

https://twitter.com becomes unresponsive (anytime new content is loaded (often), may affect more websites) and after some time Firefox suggests stopping the "script" that's causing it to slow down.

Steps to Reproduce (for bugs)

1. Go to https://twitter.com
2. Log in (if not already)
3. Wait a few seconds for the slowdown to kick in.
4. Click "stop it" (the script in question) to see everything load in instantly and go back to being responsive.

Debug info

KeePassXC - 2.3.3
keepassxc-browser - 1.1.2
Operating system: Win
Browser: Firefox (60.0 and 59.0.3 tested)
Proxy used: NO

Extra Notes

May potentially be related to #145 (?) though the browser never crashes, and the javascript console doesn't show anything.

Updates

Also happens on the following websites (will be updated):

• https://glowing-bear.org (I run my own instance, but it's a local javascript application that the website deploys, so it should happen on the official instance as well)

[droidmonkey]

This seems like a firefox exclusive issue, I do not experience any issues on those websites in Chrome.

[bullet64]

Same here. Problem since yesterday.

KeePassXC
KeePassXC - Version 2.3.3
Revision: 0a155d8

Bibliotheken:

• Qt 5.5.1
• libgcrypt 1.8.1

Betriebssystem: Linux Mint 18.3
CPU-Architektur: x86_64
Kernel: linux 4.10.0-42-generic

Aktivierte Erweiterungen:

• Auto-Type
• Browser Integration
• Legacy Browser Integration (KeePassHTTP)
• SSH Agent
• YubiKey

KeePassXC-Browser
KeePassXC-Browser Version: 1.1.1

Last Update on 05.10.18 !!!

FireFox
FireFox 59.0.2(64bit)

I am using Linux Mint 18.3 Cinnamon 64bit

[varjolintu]

The fix has been already made. Waiting for new release.

[bullet64]

1.1.3 installed and it look like the problem is fixed. Good Job. Thank you!

[jcosentino]

This is happening to me again.

KeePassXC - 2.5.4
keepassxc-browser - 1.6.2
Operating system: Windows 10 and Max OS 10.15.4
Browser: Firefox 75.0 (happening since the latest 73)
Proxy used: No

This seems to happening only when I am on LinkedIn: https://www.linkedin.com/feed/

[varjolintu]

@jcosentino It should be already fixed with https://github.com/keepassxreboot/keepassxc-browser/pull/836. Wait for the next release.

[mimeister]

I've been experiencing this with version 1.6.4 for some days now at Google Play Music and YouTube Music.

Firefox 77.0.1
Ubuntu 18.04
KeePassXC 2.5.4

[varjolintu]

@species-gh This is already tracked with #888.