Color picker on Linux not working as intended.

### Prerequisites

- [x] I am running the latest version of ComfyUI
- [x] I have searched existing issues to make sure this isn't a duplicate
- [x] I have tested with all custom nodes disabled ([see how](https://docs.comfy.org/troubleshooting/custom-node-issues#step-1%3A-test-with-all-custom-nodes-disabled))

### What happened?

When I try to use the mask editor's color picker on linux firefox, (hardware acceleration is off) from the load image node, it defaults to the specific hex color #007FFF of blue. No matter if I select something Red, Black, White, it will always go to this.

### Steps to Reproduce

1. Install ComfyUI on linux.
2. Run ComfyUI on Firefox Browser with hardware acceleration off.
3. Insert load image node, load any image onto image node.
4. Open mask editor in load image node.
5. Hit Color selector
6. Hit + for more RGB scale and more colors.
7. Hit the color picker pipette.
8. Click anywhere on the image you loaded.
9. #007FFF is the resulting color.

### How is this affecting you?

Feature doesn't work as expected

### ComfyUI Frontend Version

1.25.11

### Browser

Firefox

### Console Errors

```javascript

```

### Logs

```shell

```

### Additional Context

_No response_

┆Issue is synchronized with this [Notion page](https://www.notion.so/Issue-6506-Color-picker-on-Linux-not-working-as-intended-29e6d73d3650816ea6c7ffd77df58a71) by [Unito](https://www.unito.io)