[FR] Remember preferred backup destination folder across exports

[santo998]

Prerequisites

• I verified that this is not a filter list issue. Report any issues with filter lists or broken website functionality in the uAssets issue tracker.
• This is NOT a YouTube, Facebook or Twitch report. These sites MUST be reported by clicking their respective links.
• This is not a support issue or a question. For support, questions, or help, visit /r/uBlockOrigin.
• I performed a cursory search of the issue tracker to avoid opening a duplicate issue.
• The issue is not present after disabling uBO in the browser.
• I checked the documentation to understand that the issue I am reporting is not normal behavior.

I tried to reproduce the issue when...

• uBO is the only extension.
• uBO uses default lists and settings.
• using a new, unmodified browser profile.

Description

When exporting settings or custom filters, uBlockOrigin should allow the user to choose a destination folder (aka: "Save as") and remember it for future backups, instead of always defaulting to the browser's generic download location.

This should be independent of browser config.

Basically adding "saveAs: true" argument to the "browser.downloads.download" call.

There are other extensions which have this kind of behavior (i.e.: Tampermonkey).

A specific URL where the issue occurs.

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Steps to Reproduce

Expected behavior

Troubleshooting information

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[freezer2022]

santo998: Basically adding "saveAs: true" argument to the "browser.downloads.download" call.

If ever implemented, that should be added as an checkbox in Dashboard rather than hard-implemented, otherwise that could broke "don't ask again" browser feature for uBO (although I didn't investigate it).

[gorhill]

There won't be new permissions added to uBO -- browser.downloads is meant for extensions which primary purpose is to download stuff.

The issue has been marked as invalid because there was already an ongoing discussion: #3982