Rated 4 out of 5 stars
I am visually impaired. I have set custom font size for myself. I use this stylish style http://userstyles.org/styles/27333/custom-font-size Font size is for 12px. Progress bars in download bar doesn't stretch themself and text is bleeding. I have latest S3 Download Statusbar and Firefox 29This review is for a previous version of the add-on (2.11.1-signed).
S3.Download Statusbar - Settings - tab Appearance - Custom Style - "Text Sizes"