Detection for file and folder uploads does not occur for Firefox 130 on Windows endpoints.
All in-service DLP versions
This issue is caused by internal changes to how Firefox 130 handles file and folder uploads.
Broadcom has released a public hotfix for this issue for versions 15.8 MP3, 16.0 MP2, 16.0 RU1 MP1 and 16.0 RU2:
Hotfix_15.8.00323.01001_Endpoint_Win.zip
Symantec_DLP_16.0_MP2HF13_Agent_Win-IN.zip
Symantec_DLP_16.0.1_RU1MP1HF6_Agent_Win-IN.zip
Symantec_DLP_16.0.2_RU2HF3_Agent_Win-IN.zip