Except where noted, everything here applies to both Firefox 100 and the Firefox 91.9 ESR.
- With Firefox 99, Symantec DLP was unable to load into Firefox. This was fixed in bug 1762576.
The next ESR is Firefox 102.
If you use the ESR, we strongly recommend that you start testing with Firefox Nightly to see if there are any issues you have with the new ESR.