My main tool on the Web is an "RSS" reader. RSS subscriptions are available in Thunderbird, but .... Issue 1: A few cases of no feeds that were available for subscription so far as version 91.x and are no longer obtainable starting with 102.x. Issue 2: Starting with 102.x, the folder tree structure (subfolders) is broken and subfolders cannot be created, and moved. Issue 3: It is no longer possible to "import into Thunderbird a list of feed URLs exported in OPML format from another feed reader, etc.". I would like to see it improved, and furthermore, to achieve the same functionality as the desktop application "RSS Guard". https://github.com/martinrotter/rssguard#readme
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