Previous snapshots unavailable after reopening Firefox

[Treora]

Since the recent change to download snapshots instead of storing them inside the extension.

In the snapshot overview, many snapshots are greyed out as not being available, and cannot be opened, even though the file has not been deleted nor renamed. For others, when clicking on them, another snapshot is opened instead of the one that was clicked.

The issue appears to be that in Firefox, the DownloadItem’s id, supposedly “a unique identifier for the downloaded file that is persistent across browser sessions”, is not actually persistent. See bugzilla:

• support persistent identifiers in chrome.downloads.*
• Download id is reset after browser restart (Extensions API)

After every browser restart, the id starts counting from one again.

We could try to somehow work around this, but it feels like a waste of effort if the problem is so clearly upstream.. Luckily one can still use the extension for making the snapshots, and even doing full text search, but will then need to open them through one’s file manager.