| [[Mobile/Janus#Text_Compression|Text compression / gzip]] || {{JanusFeatureStatus|i|Proxy}} || {{JanusFeatureStatus|i|Add-on}} || {{JanusFeatureStatus|i|Fennec}} || {{JanusFeatureStatus|i|Desktop}} || {{JanusFeatureStatus|i|B2G}} || 0.2 ||
|-
| [[Mobile/Janus#Text_Compression|Text compression / xz]] || {{JanusFeatureStatus|off|Proxy}} || {{JanusFeatureStatus|ni|Add-on}} || {{JanusFeatureStatus|ini|Fennec}} || {{JanusFeatureStatus|ini|Desktop}} || {{JanusFeatureStatus|ini|B2G}} || 0.3 ||
|-
| [[Mobile/Janus#Image_Compression|Image compression / libjpeg-turbo]] || {{JanusFeatureStatus|off|Proxy}} || {{JanusFeatureStatus|ni|Add-on}} || || || || 0.4 ||