--- a/netwerk/streamconv/converters/ParseFTPList.cpp
+++ b/netwerk/streamconv/converters/ParseFTPList.cpp
@@ -35,17 +35,18 @@ FixupYear(PRExplodedTime* aTime)
   if (aTime->tm_year < 80) {
     aTime->tm_year += 2000;
   } else if (aTime->tm_year < 100) {
     aTime->tm_year += 1900;
   }
 }
 
 int ParseFTPList(const char *line, struct list_state *state,
-                 struct list_result *result, PRTimeParamFn timeParam)
+                 struct list_result *result, PRTimeParamFn timeParam,
+                 NowTimeFn nowTimeFn)
 {
   unsigned int carry_buf_len; /* copy of state->carry_buf_len */
   unsigned int pos;
   const char *p;
 
   if (!line || !state || !result)
     return 0;
 
@@ -1133,17 +1134,17 @@ int ParseFTPList(const char *line, struc
         {
           result->fe_time.tm_hour = pos;
           result->fe_time.tm_min  = atoi(p+3);
           if (p[5] == ':')
             result->fe_time.tm_sec = atoi(p+6);
 
           if (!state->now_time)
           {
-            state->now_time = PR_Now();
+            state->now_time = nowTimeFn();
             PR_ExplodeTime((state->now_time), timeParam, &(state->now_tm) );
           }
 
           result->fe_time.tm_year = state->now_tm.tm_year;
           if ( (( state->now_tm.tm_month << 5) + state->now_tm.tm_mday) <
                ((result->fe_time.tm_month << 5) + result->fe_time.tm_mday) )
             result->fe_time.tm_year--;
 
@@ -1611,17 +1612,17 @@ int ParseFTPList(const char *line, struc
               else
               {
                 if (p[1] == ':')
                   p--;
                 result->fe_time.tm_hour = pos;
                 result->fe_time.tm_min = atoi(p+3);
                 if (!state->now_time)
                 {
-                  state->now_time = PR_Now();
+                  state->now_time = nowTimeFn();
                   PR_ExplodeTime((state->now_time), timeParam, &(state->now_tm) );
                 }
                 result->fe_time.tm_year = state->now_tm.tm_year;
                 if ( (( state->now_tm.tm_month  << 4) + state->now_tm.tm_mday) <
                      ((result->fe_time.tm_month << 4) + result->fe_time.tm_mday) )
                   result->fe_time.tm_year--;
               } /* got year or time */
             } /* got month/mday */

--- a/netwerk/streamconv/converters/ParseFTPList.h
+++ b/netwerk/streamconv/converters/ParseFTPList.h
@@ -92,14 +92,17 @@ struct list_result
   const char *      fe_lname;     /* pointer to symlink name */
   uint32_t          fe_lnlen;     /* length of symlink name */
   char              fe_size[40];  /* size of file in bytes (<= (2^128 - 1)) */
   PRExplodedTime    fe_time;      /* last-modified time */
   int32_t           fe_cinfs;     /* file system is definitely case insensitive */
                                   /* (converting all-upcase names may be desirable) */
 };
 
+typedef PRTime (*NowTimeFn)();
+
 int ParseFTPList(const char *line,
                  struct list_state *state,
                  struct list_result *result,
-                 PRTimeParamFn timeParam = PR_LocalTimeParameters);
+                 PRTimeParamFn timeParam = PR_LocalTimeParameters,
+                 NowTimeFn nowTimeFn = PR_Now);
 
 #endif /* !ParseRTPList_h___ */