fix(firefox): stop extension unloading, fix #1974

[dmke]

Description

Firefox starting with version 106 introduced a change which apparently broke background pages. For the Vuejs devtools, this surfaced as extension unloading when the browser reached an "idle" state. User having the extension open noticed it as a unloading/reloading of the devtools tab.

By setting background.persisted to true in the manifest.json, the unloading stopped.

Note: This is a temporary solution, until Manifest v3 is properly supported.

Additional context

#1974

---

What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

Before submitting the PR, please make sure you do the following

• Read the Contributing Guidelines.
• Read the Pull Request Guidelines and follow the Commit Convention.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).

[dmke]

Note: somebody should test this with a Chromium-based browser, I did only care for Firefox.

[dmke]

I can confirm that Chrome 108 works as well.

[GuzlejM]

Hello, good to hear that you have even tested it on Chrome ! :)

Please could you give me some instructions how to apply the changes and where ?

whats before /packages/ path

[dmke]

Please could you give me some instructions how to apply the changes and where ?

Follow https://devtools.vuejs.org/guide/contributing.html, either "Testing as Chrome addon" or "Testing as Firefox addon".

In the step "Clone this repo", use my fork instead (git clone https://github.com/dmke/vuejs-devtools --branch fix/1974-unloading).

You can find a pre-built Firefox extension here: #1974 (comment)

[djpowers]

I went ahead and tested using the pre-built Firefox extension mentioned in #1974 (comment), and can confirm this resolves the problem I was having.

I also tested it in Google Chrome. Though I was not seeing the reported bug in Chrome, installing the dev build from @dmke's branch per the instructions seemed to function without issue.

Wondering if @Akryum or someone with commit permissions could take a look. Thank you!

[jbhamilton]

Any idea when this will release?