I am using the Galaxy Kylin 2503 system, with Zotero Connector 5.0.193 version and Firefox version 134. I am attempting to save a PDF via a local area network link. For the same webpage and the same PDF link, Zotero 6 can download it successfully, but neither Zotero 7 nor Zotero 8 (including the official release of Zotero 8) are able to download it.

(3)(+0000442): Checking updated items for retractions
5)(+0004869): POST/connector/hasttachment Resolvers HTTP/1.1 host:127.0.0.1:23119 user-agent: Mozilla,15.0 (X11; Ubuntu; Linux x8664; r:136.0) Gecko/20100101 Firefox/136.0 accept: / accept-language: en US,en4-0.5 accept-encoding gzip,
deflate, br, zstd content-ty pe: application/json x-zotero- version: 5.0.193 x-zote ro-connector-api- version: 3 content-length:44 origin: moz-extension//3aBecble-4e18-438599b8-0f6594eea19a connection keep-alive sec-fetch-dest: empty sec-fetch-mode:
cors sec-fetch. site: same-origin
(5)(+00000022"sessionlD":"uwZxN2Eq""itemlD":"WIhoaM7"]
[5)(+0000003 HTTP/1.0 200 OK X-Zotero- Version: 8.0 X-Zotero- Connector-APl-Version:3 Content- Type: application/json false
(5)(+00017001:POST/connector/delay/Sync HTTP/11 host: 127.0.0.1:23119 use r-agent: Mozilla5.0(X11; Ubuntu: Linux x8664;rv:136. o) Gecko/20100101 Firefox/136.0 accept: / accept- language: en US,enq-0.5 accept-encoding: gzip, deflate, br, zstd
content-type: application/json x-zoter o-version: 5.0.193*-zotero-connector-api version: 3 content-length:2 origin: moz-extension:/3aBecb1e4e78-4385-99b8-0f6594ea19a connection: keep alive sec-fetch-dest empty sec- fetch-mode: cors sec-fetch-site:
same-origin
(5)(+0000003): HTTP/1.0204 No Content X-Zotero Version: 8.0 X-Zotero- Connector-APl-Version:3 Content-Length: 0
(5)(+0002922): POST/connector/ping HTTP/1.1 host:127.0.0.1:23119 user- agent: Mozilla5.0 (X11: Ubuntu:; Linux x8664; V:136.01 Gecko/20100101 Fi efox/136.0 accept: */ accept- anguage: en-US,ensq-0.5 accept-encoding:g7 ip, deflate br, st content-
type: application/json x- zotero-version: 5.0.193 x- zotero-connector- api-version: 3 content- length: 2 origin: moz- extension://3a8ecb1e-4e78-43$5-99b8-0f6594eeal9a connection: keep alive sec-fetch dest: empty sac-fetch- mode: cors sec-fetch-site:same-
origin
S)(+000002: HTTP/1.0 200 OK X-Zotero Version:8.0 X-Zotero- Connector- APl-Version: 3 Content-Type: application/json [ prefs':
"automaticSnapshots" true,'downloadAssociat edFiles":tue,'supportsattachmentUpl oac":true,"supportsTagsAutocompl ete"true," googleDocsAddNoteEr iabled tue, canUserAddNote"true,'googleDocsCitationx plorerEnabled"false transdatorsHash"
(5)(+0000025): POST /connect or/getSelecte dCollection HTTP/1.1 host:127.0.0.123119 user-agent: Mozilla5.0 (11 Ubuntu, Linux :86. 64; rv.136.0) Gecko/2010010 Firefow/136.0 accept: / acept- language: en-US,en;=0.5 accept- encoding gzip,dllate
br, zstd content-type: appliation/json x-zotero- version: 5.0.193 x-zotero- connector-api-version:3 content-length: 32 origin:moz-extension:/3aBecble-4e78-4385-99b8-06594ea19a connection: keep-alive sec-fetch-dest: empty sec-fetch- mode: cors see-
fetch- site: same-origin
(5)(+0000002:"switchToReadablel ibrary":true]
(4(+000001! SELECT DISTINCT taglD l! teTa oN tags USING (tagID) JOIN tems USING (iteml D) WHERE librarylD=7 ORDER BY name COLLATE NOCASE [1]

https://s3.amazonaws.com/zotero.org/images/forums/u17787365/acxe01j7fbkxljk7weay.png

I asked for a Debug ID from the Zotero Connector for reloading the page and trying to save, not mangled raw output from Zotero.

OK, but we still need debug output from the Connector. You can email it to support@zotero.org with a link to this thread.