Firefox unable to install extensions
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- Dominant language
- C++
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Description
### Windows Version
Microsoft Windows [Version 10.0.26100.4349]
### WSL Version
2.5.9.0
### Are you using WSL 1 or WSL 2?
- [x] WSL 2
- [ ] WSL 1
### Kernel Version
6.6.87.2-microsoft-standard-WSL2
### Distro Version
Ubuntu 24.04
### Other Software
This is a follow up of #2353. See steps below
https://github.com/user-attachments/assets/13d7b7dc-78e1-41b2-aa8c-fd1131340e7b
### Repro Steps
Open WSL -> Open Firefox -> Install one Extension -> Install does not happen.
See steps below
https://github.com/user-attachments/assets/13d7b7dc-78e1-41b2-aa8c-fd1131340e7b
### Expected Behavior
install extension
### Actual Behavior
exntesion is not installed
### Diagnostic Logs
[WslLogs-2025-11-19_17-58-37.zip](https://github.com/user-attachments/files/23634660/WslLogs-2025-11-19_17-58-37.zip)
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the failure in WSL 2 on Ubuntu 24.04 using the listed steps: open Firefox and try to install an extension. Review the attached WSL diagnostic logs and compare the observed behavior with the expected successful installation; done means Firefox can install an extension normally in that environment.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- linux, ubuntu
- Domain
- desktop, operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100