[nan1923]

use_browser_cache:true
use_browser_cache_only:true
open_pages_in_browser:true

works for fics for me, but not for anthologies, then I get:

calibre, version 6.17.0
ERROR: Unhandled exception: <b>HTTPErrorFFF</b>:HTTP Error in FFF 'Page not found or expired in Browser Cache (see FFF setting browser_cache_age_limit)'(428) URL:'https://archiveofourown.org/users/login'

calibre 6.17 embedded-python: True
Windows-10-10.0.19045-SP0 Windows ('64bit', 'WindowsPE')
('Windows', '10', '10.0.19045')
Python 3.10.1
Windows: ('10', '10.0.19045', 'SP0', 'Multiprocessor Free')
Interface language: en_GB
Successfully initialized third party plugins: DeDRM (10, 0, 3) && Count Pages (1, 13, 0) && EpubMerge (2, 15, 0) && EpubSplit (3, 6, 0) && FanFicFare (4, 24, 0) && Favourites Menu (1, 3, 0) && Find Duplicates (1, 10, 8) && Generate Cover (2, 3, 2) && Job Spy (1, 0, 238) && Modify ePub (1, 8, 1) && Quality Check (1, 13, 4) && Reading List (1, 15, 1)
Traceback (most recent call last):
File "calibre_plugins.fanficfare_plugin.fff_plugin" , line 944, in update_anthology
File "calibre_plugins.fanficfare_plugin.fff_plugin" , line 686, in get_urls_from_page
File "C:\Users\leono\AppData\Roaming\calibre\plugins\Fa nFicFare.zip\fanficfare\geturls.py", line 44, in get_urls_from_page
File "C:\Users\leono\AppData\Roaming\calibre\plugins\Fa nFicFare.zip\fanficfare\adapters\base_adapter.py", line 459, in get_urls_from_page
File "C:\Users\leono\AppData\Roaming\calibre\plugins\Fa nFicFare.zip\fanficfare\adapters\adapter_archiveof ourownorg.py", line 593, in before_get_urls_from_page
File "C:\Users\leono\AppData\Roaming\calibre\plugins\Fa nFicFare.zip\fanficfare\adapters\adapter_archiveof ourownorg.py", line 143, in performLogin
File "C:\Users\leono\AppData\Roaming\calibre\plugins\Fa nFicFare.zip\fanficfare\requestable.py", line 102, in post_request
File "C:\Users\leono\AppData\Roaming\calibre\plugins\Fa nFicFare.zip\fanficfare\fetchers\base_fetcher.py", line 124, in post_request
File "C:\Users\leono\AppData\Roaming\calibre\plugins\Fa nFicFare.zip\fanficfare\fetchers\cache_basic.py", line 122, in fetcher_do_request
File "C:\Users\leono\AppData\Roaming\calibre\plugins\Fa nFicFare.zip\fanficfare\fetchers\decorators.py", line 102, in fetcher_do_request
File "C:\Users\leono\AppData\Roaming\calibre\plugins\Fa nFicFare.zip\fanficfare\fetchers\cache_browser.py" , line 97, in fetcher_do_request
fanficfare.exceptions.HTTPErrorFFF: HTTP Error in FFF 'Page not found or expired in Browser Cache (see FFF setting browser_cache_age_limit)'(428) URL:'https://archiveofourown.org/users/login'

and for long fics: Browser Cache Failed to Load with error 'unpack requires a buffer of 4 bytes'

images are also not included, but for the rest it seems to work for now

How would I get Flaresolver to work, after under-attack mode is over and ao3 flaresolver support would be added (or for ff.net)?