Please do not clear your cache daily or on a regular basis.
It defeats the purpose of having one.
Only clear cache if you have problems, such as texture corruption.
See here for a description of what a cache is.
Clearing your cache this way will “cure” certain kinds of texture or inventory issues and is the suggested procedure before resorting to more drastic steps like Reinstalling the viewer.
|Windows 7, 8.1 and 10||SL: C:\Users\[USERNAME]\AppData\Local\Firestorm
|Windows 7, 8.1 and 10||SL: C:\Users\[USERNAME]\AppData\Local\Firestorm_x64
Now continue as follows:
The “clear your cache” advice is something we resort to ONLY if the problem appears to be texture related. A full cache is almost always better than an empty one. Clearing Inventory cache when you have inventory loading issues can be helpful. There are occasions when you will not want to clear inventory cache, just your texture cache. This can only be done manually; do this by opening the cache and deleting the files in the texture folder. If you want to manually clear cache without affecting inventory cache, avoid deleting any files ending with .inv.gz as these are inventory cache files. To manually clear inventory cache delete files ending in .inv.gz.
At this point, you should be back to normal… whatever “normal” happens to be that day in SL.
See this page for documentation on Firestorm 5.0.7 (52912) and earlier.